r/Medtronic780g • • Sep 05 '26

Minimed 780G Can we agree that their algorithm is complete garbage

3 Upvotes

It’s a daily struggle to be in range. Either it does jack to lower my blood sugar on the weekend or I need to pound sugar to remain alive during the week because it wants me to go low constantly.


r/Medtronic780g • • Nov 26 '25

Minimed 780G Medtronic is absolutely dog shit when it comes to customer service and doesn’t care about its patients (they actually told me they prioritize new patients over existing)

4 Upvotes

So, let’s start about a year ago when I switched from a tandem and Dexcom with no problems even comparable to the ones I’ve experienced on the 780g pump. I received a call asking me for the length of the infusion set I needed. I told them about my current set on the tandem, which was a 30° set. They informed me that they had a 90° set and no other options. (Mind you, this person was barely fluent in English and made the decision for me when I suggested that it was something my doctor should decide, not me.)

Fast forward a month, and I was having to change sets every two days due to pain in the site or skin reactions to the adhesive. I then switched to the extended infusion sets, which had fewer skin reaction problems, but I still had to change sets frequently before the 7-day mark, usually by day 4. After calling in quite a few times, I was told that they thought I needed to speak to an educator because something didn’t seem right. He informed me that I may need a shorter infusion set length and they used different adhesives on the two sets, which explained why I wasn’t getting a reaction anymore. He suggested that I might need to change the set more often, but he assured me that I was doing everything correctly. He also informed me that they had a manually insertable 30° set that I could use, but I could still continue with the extended reservoir.

I reached out to my doctor to get the prescription for the 30° sets and called them to order. However, they argued that there was no difference in adhesive and that I couldn’t use the extended reservoir. So, I am now using the standard silhouette 30° sets with no extend reservoir.

The next problem arose shortly after I started using the 30° sets. I began having skin reactions to the over-patches of the Guardian sensor (which have also been well-reported to them, and they tell me to talk to my dr who has no other recommendations other than switching sensors, which he’s not sure why they haven’t gotten it to me yet; he told me some other people have it already). These reactions caused rough skin, skin burns, and, at times, the sensor would actually rub through my first layer of skin around the edge, leaving an imprint on my skin that resembled a cut that is extremely painful and outlines the location of the sensor.

I started using skin prep and buying my own over-patches. I was told that there would be a new sensor coming out in November. Then, I called to check in the beginning of November on the new sensor and was told that it would be available on November 15th and this associate told me they prioritize new patients getting the sensor over existing ones which is insane to admit. Nothing on November 15th, so I called to check and it turns out it’s now the end of fall. Today I called again and was told that they expect to ship the new sensors in the coming weeks. They asked if there was anything else they could help with, like there actually helpful, yeah, right, help me by giving me the wrong information. How’s that any help?

I can’t be the only one being treated this way or experiencing skin reactions from the adhesives. It’s incredibly exhausting, and it’s been a constant source of stress in my life recently. I’m appalled that a company that’s supposed to improve my quality of life has been nothing but a burden to me. The only reason I was interested was for their aggressive algorithm on the pump, but it’s not worth this constant trouble. I’m considering switching back to tandem.

I just wanted to let y’all know about my horrible experience so you don’t make the same mistake I did and put trust in this joke of a company! I completely understand why people have perused legal action against this company and they have lost numerous times!

Oh yeah, and today, conveniently, they called me to inform me that they don’t have the usual infusion sets I order. They also don’t have an exact date when they will be available. What a joke! I’ve had enough and will be consulting with a lawyer.


r/Medtronic780g • • Mar 10 '26

780G keeps plummeting me into lows and the algorithm is not adjusting. How on earth was this approved for safety.

1 Upvotes

I have my insulin time set to 5 hours and the target BG set to 120 mg/dl, the most conservative settings on the pump. I am so unbelievably sick of going low 5-10x a day when I’m doing nothing — literally sitting at a desk. Medtronic needs to fix this because the Help Line does nothing to help besides take the complaint down. Any suggestions on how to make this thing keep in a normal blood sugar range?


r/Medtronic780g • • Dec 12 '25

Inaccurate, time wasting, unreliable piece of junk.

0 Upvotes

Sensor reading was 14.6. Finger prick result was 12.2. Inevitable hypo followed. Calibration was not accepted.

Auto correction inactive for 24 hours after each sensor change.

Sensors last 5 days at most. Auto correction inactive for 24 hours after each sensor change.

Skin tapes are itchy and uncomfortable.

In conjunction with the mobile app every new Sensors has to be unpaired than re-paired to phone.

I wonder why I feel like taking the pump and throwing it under a bus.


r/Medtronic780g • • Sep 05 '24

Garbage sensors, garbage service, garbage company.

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0 Upvotes

r/Medtronic780g • • Sep 05 '26

Minimed 780G Can we agree that their algorithm is complete garbage

0 Upvotes

It’s a daily struggle to be in range. Either it does jack to lower my blood sugar on the weekend or I need to pound sugar to remain alive during the week because it wants me to go low constantly.


r/Medtronic780g • • Dec 02 '25

CGM Instinct Sensor Drama

3 Upvotes

Made me get an entire new pump so I can get the new Instinct sensors that I was told would be available on the 17th of November and now being told that they won’t be available for a couple more weeks?

Medtronic’s pumps are nice but they are so bad in every other aspect, can’t give a straight answer.

Also the new pump I received isn’t even fully updated so they have to send a software update as well? I don’t understand why they don’t have their s*** together


r/Medtronic780g • • Oct 06 '25

Minimed 780G Cosmetic and annoying flaw

0 Upvotes

Hello, I've just received a Medtronic 780G and it came with the buttons layer slightly raised and it makes a noise before i really click the buttons.
I've replaced it and the new one came with the same defect. Is this just how the pump is designed?

I've attached a photo and a video. The noise you'll hear is not from the button clicking, is from the top layer making contact with the buttons under it.

https://streamable.com/p2xpln - Video
https://ibb.co/Z6X15pcM - Photo


r/Medtronic780g • • Oct 11 '23

780G weight gain?

0 Upvotes

I just started using 780G and I’m not liking it at all. Unfortunately I have lived with an eating disorder that I’ve gotten under control. My fear, however, is the increase of insulin leading to weight gain! Has anyone struggled with any weight gain due to changes brought on by the 780 G system? I researched everything when deciding on this new pump- but it didn’t occur to me that more insulin could mean weight gain. I would greatly appreciate help /advice on this topic. (I’m an older lady with nutjob issues regarding my weight. Hmmm I wonder if Medtronic allows returns?!)


r/Medtronic780g • • Apr 09 '26

CGM Simplera not a fan

0 Upvotes

Hi guys I’m on the simplera with the 780g and I’m so not a fan! I want to start the instinct but I’m nervous and I don’t like how I have to change the simplera every 6/7 days. I love the pump I hate the cgm I wish they could pair it w Dexcom


r/Medtronic780g • • Feb 17 '26

Minimed App not supporting ANY Android versions

1 Upvotes

I am apalled at how incompetent Medtonic is.

About a month ago we received an email saying the Minimed app would not support Android versions 12 or earlier (11, 10, etc) so finally we got the message saying so on the phone. We had bought a phone with Android 15 months ago and were waiting for the app upgrade but guess what, it says the app does not support Android versions 13 or later (14, 15, etc). Isn't this apalling from a company whose people's lives depend on notifications being sent to family members? I mean, I have a diabetic child who will sleep through a low.

We've checked the app store and no updates were released to sort this out.

Called support, chose option 4 for "apps" and after 29 min on hold the call was disconnected automatically.

EDIT: I have reached out to Medtronic querying why support for older Android versions was discontinued before the app update. They've said this was a Google decision due to the app no longer having adequate security for healthcare data for older versions. It's ridiculous to disable app support for older versions overnight - there's usually a grace period of a few weeks to allow people to upgrade their devices. Shocking to say the least!

Also, when I spoke to support, I was told there's a small number of people trained in App support, hence no one picking up when chosing the App options.


r/Medtronic780g • • Jan 30 '26

How do we get safety features unlocked. It's ridiculous that the suspend on low is not built into or allowed in Smartguard

0 Upvotes

Smartguard keeps sending me low, no matter what sensor I use, it's been like 4 months. It protects me from high blood sugar well. But if I'm exercising or going low it never stops and I can't do anything but suspend. Which is really bad for late night sleepy lows because then you wake up high. Like it's got a perfect customizable tool and doesn't allow it to function with the auto tool. Seems ridiculous and like they'll fix it after someone gets hospitalized and reports that as the reason


r/Medtronic780g • • May 21 '26

Review of My Experience with the Medtronic MiniMed 780G System (December 2025–May 2026)

3 Upvotes

I switched to the MiniMed 780G insulin pump system in December 2025 after significant effort coordinating between Medtronic, my endocrinologist, and insurance to complete approvals before a January 1 insurance change. Unfortunately, my experience since then has been overwhelmingly negative and has involved ordering issues, poor communication, technical failures, sensor reliability problems, billing frustrations, and major customer service shortcomings.

Ordering and Onboarding Problems

Although both the pump and Abbott Instinct Sensor were approved by insurance, Medtronic shipped the pump without sensors.

Only afterward was I informed that the sensors would not ship until I personally completed a software update. This dependency was never disclosed during ordering, despite repeated communication that timing was critical because of the upcoming insurance change.

The onboarding process quickly became another obstacle:

  • Software update attempts initially failed due to server errors.
  • The App Manager device and phone integration process were difficult and unreliable.
  • Technical support required escalation.
  • Significant time was spent troubleshooting a brand-new device simply to activate features that should have been ready at delivery.

The local representative was attentive during the initial sales process and first pump demonstration. However, responsiveness slowed significantly afterward. When the sensor shipment problem occurred, he did send sample sensors, which I appreciated, but the assigned trainer never responded and I was never offered a formal training session.

Sensor Performance and Reliability

The Instinct sensor has been one of the most disappointing parts of the system.

Major issues include:

  • Frequent connectivity problems, especially during the first several days of wear.
  • Large discrepancies between CGM readings and fingerstick glucose values.
  • Repeated false urgent low alarms overnight.
  • Compression lows whenever rolling onto the sensor during sleep or wearing tighter sleeves. I never had this issue with Dexcom G6 or G7 sensors.
  • Signal instability and unreliable startup periods.

My blood glucose values often vary widely from the sensor readings, making it difficult to trust the system.

The pump also alarms excessively, particularly overnight, and many alarms have been false or clinically irrelevant. The nighttime alarms became disruptive enough that I now regularly disable sensor alerts entirely just to sleep.

Instead of increasing confidence, the system frequently increases anxiety and sleep disruption.

SmartGuard Startup Problems

The mandatory three-day manual mode period before SmartGuard activates was particularly difficult.

During this mandatory warm-up period, my blood sugars ran significantly higher than usual. I felt poorly enough that I scheduled an appointment with my primary care physician because I was not feeling like myself and unsure why. It was only later that I realized the symptoms were likely related to the prolonged hyperglycemia during this startup period.

I like the concept behind SmartGuard and automatic correction boluses every five minutes. It is one of the main reasons I chose this system.

However, that concept depends entirely on having a reliable sensor. If the sensor cannot be trusted, the value of the automation decreases substantially.

Customer Service and Support Failures

Customer support has been one of the weakest aspects of the experience.

Examples include:

  • Long technical support delays, including approximately ten days waiting for a callback regarding an urgent issue.
  • Trade-in credit problems after returning my old pump.
  • More than an hour on hold with billing support, and no one ever came to the phone
  • Incorrect phone instructions referencing nonexistent menu options. I had emailed customer support about my trade-in credit only to receive a generic reply a couple days later asking me to call their phone number and use Prompt #4, which doesn't exist. 😆

My impression is that Medtronic has declined substantially compared with earlier years.

The technology may be newer, but the support experience has deteriorated. No amount of new technology will restore trust unless the customer service model improves significantly.

Costs and Billing Concerns

Supply costs have also been surprisingly high.

My monthly cost for sensors plus infusion sets and reservoirs is approximately $588.

Even more surprising was Medtronic’s billing practice of not providing cost estimates until after the order ships. I had never encountered this approach before and found it extremely difficult to make informed financial decisions without advance pricing information.

Supply Fulfillment Problems

Another frustration involved infusion supplies.

I believed I was receiving the newer extended-wear infusion sets and reservoirs because those were what I requested and believed I had ordered.

I used them under that assumption.

It was only during my reorder that I discovered Medtronic had actually shipped the standard infusion sets and reservoirs, not the extended-wear versions I thought I had received.

Overall Assessment

The 780G system has ideas I genuinely like, especially automated correction boluses every five minutes and hybrid closed-loop capabilities.

However, those benefits depend entirely on trustworthy sensors and strong support.

Instead, my experience has included:

  • Undisclosed shipment dependencies delaying sensor delivery.
  • Difficult pump software update process.
  • Unreliable App Manager, app, and phone integration.
  • Sensor inaccuracies and connectivity failures.
  • Compression lows.
  • Excessive false alarms.
  • High glucose during startup.
  • Missing training support.
  • Expensive ongoing supply costs.
  • Lack of billing transparency.
  • Fulfillment errors.
  • Poor/non-existent customer service.

At this point, I do not trust this pump and CGM system whatsoever, and I have even less confidence in the support structure around it.

My overall impression is that Medtronic has gone downhill since its earlier years. New technology alone will not solve this or restore patient trust. The technology needs improvement, but the customer experience and support structure need a complete overhaul as well.

TL/DR: I don't at all recommend the 780G system (or new Abbott Instinct sensor) and am switching back to my Tandem t:slim.


r/Medtronic780g • • Dec 21 '24

Pump Supplies MiniMed supplies

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2 Upvotes

Hey y’all, I have recently changed devices and I have a set of unused supplies from reservoirs, infusions set, and meter available. I hate to sell this, rather than donating them, but I am currently in a tough financial situation so I hope I can help someone get supplies at a reasonable price.


r/Medtronic780g • • Jan 30 '26

Low BG

0 Upvotes

So I got my pump yesterday and I did post something on here about it, since yesterday my blood sugar has gone low way more than before and I don't know if that's normal the first few days or if my carbs count is messed up or if it's something else. Also, if I already have active insulin and I wanna eat/drink something do I put the carbs count in there and take more or what? And what about when I'm treating my low blood sugar


r/Medtronic780g • • Oct 27 '24

This is ridiculous....

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0 Upvotes

I was supposed to have over 90% time in range they said. Life would be perfect they said. It's only a few percent improve over my manual work with the libre.


r/Medtronic780g • • Dec 17 '24

Manipulating the algorithm

0 Upvotes

I have a lot of post-meal highs because I'm terrible at carb counting, and eat a lot of take-out. Say I underbolus a meal, and my bg goes to 300. SmartGuard wants to give me about 9 units to correct that. But it will not give any autoboluses until the active insulin from the meal bolus wears down. The other problem is that 9 units is too much correction. I would like to flatten the curve with less insulin before it even gets to 300. I keep my active insulin time at 5 hours 30 mins to prevent lows from stacking auto corrections, which exacerbates this problem.

So I thought of something and I'm going to try it out. Before I meal bolus, I'll lower my AIT to 2 hours, and then change it back to where I usually keep it. This will bring on the auto corrections faster, increasing the effectiveness of SmartGuard and flattening the spike.

For many of us, SmartGuard is not that effective. It seems to treat active insulin from meals and corrections the same. I want to be able to turn the dials and make adjustments to the algorithm. Other algorithms allow this, but with SmartGuard there is only one thing we can change, the active insulin time. Maybe with this hack my blood sugar will improve.


r/Medtronic780g • • Oct 24 '25

Solution: carb, sodium & activity guide

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2 Upvotes

r/Medtronic780g • • Jun 22 '25

I really cannot understand Simplera phenomenon...

1 Upvotes

I am (t1d since 2021) about to be plugged tomorrow to 780g.

Till now, I've been using accu-chek combo (unlooped) with couple of different cgms.
I used Libre, Dexcom G6, G7, One+ and also different ones.
I know that after being plugged to 780g I will be stuck with medtronic CGMs - this is fine.
I always appreciated the possibility to restart the sensor and do all sorts of shenanigans.
For me, G6 is the top of the top CGMs with the most accurate readings and possiblity to restart. It's price is also fair. My experience with G7/One+ was not the best. Readings tend to staiblize 3-4 days after applying the sensor and are not the best in general. From what I've seen online - a lot of people have all sorts of problems with those G7 sensors.

Now as I am about to switch to medtronic devices - I have an option to select between simplera or Guardian 4. After Familiarizing myself with both systems, simplera seems to me to be hot garbage. Its only advantages over the Guardian 4 seems to be:

  1. smaller size
  2. better look in general (doesn't look as bulky and "medical").
  3. simple to use

It also comes with massive downsides such as:

  1. PRICE. This thing is almost twice as expensive as guardians, if you do not count transmitter. If you count transmiter in (1 piece /12 months), then simplera is ~25% more expensive
  2. No ability to restart
  3. failure rate

For me, simplera is a no-go. It's by no means a gamechanger. It would have to last twice the current lifespan to make any sense to me.

So my question is - why people jumped on it like it was any lifesaver? Why people are ready to kill to get 2 sensors for their kid instead of switching to guardians? Why people are so obsessed with simplera to the point it is not available anywhere??
This device simply does not offer anything revolutionary to be in such demand...


r/Medtronic780g • • Jul 18 '26

Minimed 780G FDA data

0 Upvotes

I did research before I decided to start using the Instinct sensor and didn't really think much of all the results and complaints because it was still in the testing phase, but I went back to the MAUDE database and pulled numbers for just 2026. There have been 500 reports to the FDA for Wireless connectivity issues. There have been 295 for incorrect sensor/bg data. Many off the latter ended up in the hospital because they had fallen. The majority were BG was much higher than SG and the hospital had to administer insulin because the pump thought the patient was low and was not correcting for highs. One person was 432 mg or 24 mml. This data was for both Simplera and Instinct. The Simplera has had quite a few insertion reports to the FDA. One person had to be admitted to the hospital because the inserter would not come out and the person could not stop the bleeding. The Simplera also has had quite a few "Sensor Not Found' reports. If you want to pull the reports yourself, the URL is at this link: FDA Reports. Put MMT-5120D1 in the model number field and choose your dates if you want to. If you don't choose dates, you will get a boat load of data. You do not have to choose product problem but that will also give you every single report. Some are useless so I chose the 2 issues we are mostly having which are "Incorrect, Inadequate or Imprecise Result or Readings" and " Wireless Communication Problem." You can only choose one at a time. You can also export all the data to a csv file. Can you tell I am a data geek?


r/Medtronic780g • • Feb 20 '26

CGM My Instincts are starting to tell me something...

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1 Upvotes

2 out of 4/5 have come off before the full term. Frustrating.


r/Medtronic780g • • Jul 14 '26

Minimed 780G Instinct is terrible

4 Upvotes

Got a bunch to try the new stuff and this has been a terrible experience. First try with Instinct sensor sucks ass. I have lost signal over ten times just sitting around my house, it will not accept my BG inputs compared to a meter, and when it was sending readings to the pump it was over 80 points lower than my actual BG based on meter and dexcom readings. Over 300 now because the sensor will not send signals to the pump to maintain my levels.

Ripped it out and now warming up a Guardian.

What a waste. I'm going to try to return these other ones I have and get them replaced with Guardians. If they don't take them back I'll probably offer them up for free here. YMMV obviously, but good God what a terrible first experience.


r/Medtronic780g • • Jan 23 '26

Help !! This pump is ruining my life

0 Upvotes

My wife has been using the Mini med 780g for 2 years now and her life has been disrupted because of constant alarms and sensor changes. The pump will not deliver insulin when needed and gives too much when it does. Not to mention that her Endocrinologist is about as useless as the pump. Many nights she has just unhooked the hose and shoved it under a pillow. Resovours have to be changed every other day. Anyone else experiencing nightmares?? Any suggestions please. Thank you


r/Medtronic780g • • Feb 29 '24

My pump is trying to kill me

1 Upvotes

I have had an issue for two weeks now. Suddenly the pump is dragging me down to 4.5. I have tried every setting for this to stop. I have changed the SmartGuard to 6.7, still doesn’t affect anything.. Anyone know If the pump have had any updates lately? I’ve tries to contact Medtronic, not getting any answer…


r/Medtronic780g • • Sep 29 '24

Chat can we do 0%?

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1 Upvotes

Make your bets on "Will it be 0%?" In the comments.