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HTC s640 Battery Issues?

Hi Folks,
My s640 seems to have developed an issue with the battery. It will get to about 50% and stay there for most of the day then suddenly I get the low and critical warnings, then off. The warnings then off sequence happens within about 10 seconds of getting the first warning. On one occasion I got the low and critical warnings, but then the phone reported 268% battery remaining.
Is/has anyone else experienced this issue or anything similar? I'm wondering if it is the phone or the battery.
Thanks.

I am having the same trouble.
I'll fully Charge my battery and then disconnect it and us it for about 10 minutes and suddenly it will drop my call, turn off my bluetooth and disable the radio (network), and if I don't plug it in, within 30 seconds it shuts off. If I remove the battery, hold the power button for 5 seconds and the put the battery back in and turn it on then I have my battery shows 90+% free.
I'm not sure if it's the battery or the phone.

have you tried running the battery till it won't turn on the phone. Then charging it up again?
maybe a hard reset may help?

daroota said:
I am having the same trouble.
I'll fully Charge my battery and then disconnect it and us it for about 10 minutes and suddenly it will drop my call, turn off my bluetooth and disable the radio (network), and if I don't plug it in, within 30 seconds it shuts off. If I remove the battery, hold the power button for 5 seconds and the put the battery back in and turn it on then I have my battery shows 90+% free.
I'm not sure if it's the battery or the phone.
Click to expand...
Click to collapse
Yes I too am having this issue since rom upgrade so is a friend, he just purchased new battery from Telus but they shipped wrong one. Will update if new battery resolves his issues. I went throught three phones with brand new battery they all did same thing Battery is not HTC 20 dolllar aftermarket one (just before warranty expired). Have gotten 400 credit for new phone but nothing like this one out there except Touch Pro Diamond and I hear even with new battery that phone battery life is too short to last through day. Get feeling Telus broke something in software with Rom update used to be when phone battery was expiring a red light would blink (opposite of blue tooth light) now it is only notifications from WM that phone battery is critically low and shuts of radio etc. yet you plug phone in and it's charged 10 minutes later makes no sense. Rechargable batteries voltage change with charge the interesting thing when I pull my battery the voltage is the same charged or just after error messages (I have a very expensive True RMS Voltmeter from work that has been calibrated in last year) but without load this isn't an accurate test. Does make me think something is not right and beleive it software related for more see my post in Howrds Forums under phone model.

I am having the same issue after the ROM update, not sure if it's the cause. Already replaced a battery on warranty for not holding charge. But now I have had the phone over a year so telus wants me to buy a battery for $80. I know based on this information i'll be wasting my money.
i want stuff to work for more than a year what the hell is money good for?

any fixes or updates wether the new battery helped??

I replaced the battery on my phone and these odd issue I was having are gone guess we have to face the fact that you need to purchase a replacement once a year hopefully it will last a year my problems start just short of a year.

I just got my new battery from here http://www.longlast-battery.com/productCart/pc/viewPrd.asp?idcategory=0&idproduct=17483
I will post after I get it full charged and try it for a day or two
where did you get yours from?

well the battery didn't even last an hour on the way to work.
#1 it was similar but 2-3mm shorter than the OEM and barely touched the contacts on the phone.
#2 charged overnight ok and said 100% charged then withing 20min it said low battery then died shortly after
#3 would not charge a second time (on 2 of my wall chargers, two usb and 1 car charger) Just the red light would light up. Tried jiggling the battery but nothing not even a flashing red light.
so much for a battery bought from the US. Waiting for RMA

typhoonk said:
well the battery didn't even last an hour on the way to work.
#1 it was similar but 2-3mm shorter than the OEM and barely touched the contacts on the phone.
#2 charged overnight ok and said 100% charged then withing 20min it said low battery then died shortly after
#3 would not charge a second time (on 2 of my wall chargers, two usb and 1 car charger) Just the red light would light up. Tried jiggling the battery but nothing not even a flashing red light.
so much for a battery bought from the US. Waiting for RMA
Click to expand...
Click to collapse
I purchased a battery from E-bay and it would not charge at all. Existing charge in battery was enough for me to know that my issues were battery related after all as phone lasted for quite awhile. Tried charging ebay battery for close to 12 hours no go, so returned it for full refund. Called Telus because my calls in were while I was under warranty still but it had since expired they credited my account for the price of battery over a couple of years (1.5 batteries really) to make up for battery not lasting more than a year...hope that makes sense. Doubt I will buy another HTC with todays battery technology there is no reason one of these batties can't last 2-3 years if taken care of. Just a money grab telus/htc on their part in my opinion.

Gave the battery I got from longlast-battery another try.
the battery is CS-DS640SL 1250mAh 3.7V
I got it to charge by turning off the phone and plugging it into a usb port on my PC. Took about 6 hours to charge to 100%.
Won't charge when phone is on which is weird. Even at 90+% charge.
Lasted a full day without charging. That's a good thing I guess. Even when I restarted, it didn't lose the typical 10% drop in charge the other battery does.
I'm going to discharge it and charge it three times to see if it starts working properly and letting me charge it normally. Was a tip someone gave me. Won't hurt anything, and if it doesn't work I can still send it back.
Curious what you guys think. do you think it's a bad battery and I should just get an exchange, or I should just get my money back, and shell out the $100+ for a Telus battery?

Well the longlast battery test failed badly. Lasted about half a day with minimum calls and data use. No wifi no bluetooth. After it died I took it out and let it sit for a bit as the battery was fairly warm. After I put it back in, it said I had about %40 left. Very odd. And it lasted for another two hours before dying.
Now it's back at the won't charge stage. So I finally got an RMA number, so this one is going back.
Hitting Telus on the way home to pony up for a new battery. Getting the extended one as it's only $20 more. Hopefully this one will last more than a year - then I can get another phone (got to love 3yr retention contracts that end early )

I've created a Facebook group to act as a petition for everyone with the notorious battery life problem.
Join the group here, it's open to everyone:
http://www.facebook.com/group.php?gid=100925126406
Share your experiences dealing with Telus positive or negative ones.. or tell us if you've been able to fix the problem by hacking the device. Anything at all that will help the people still stuck with this phone.

I have done some efforts regarding battery capacity measurement Just lookup this thread: http://forum.xda-developers.com/showthread.php?p=5558383#post5558383

Battery dead the next morning????

Last night before i went to bed my battery was 100% and when i woke up 8 hours later, it was at 13%. The phone was off!!!
Anyone else get this? IS there a way to calibrate the battery? That was its first charge btw.

It might just be because it's the first charge. "100%" probably wasn't actually 100%. Let it drain to 0%, then charge fully to 100% without interruption and hopefully you'll have normal battery life. If not, return the unit for a replacement.
Or wait until we have root/custom recovery, and reset the battery statistics in CWM. But good luck returning it if that doesn't work.

Most phones take a few charges and completely dead cycles to get the battery goin.

craig0r said:
It might just be because it's the first charge. "100%" probably wasn't actually 100%. Let it drain to 0%, then charge fully to 100% without interruption and hopefully you'll have normal battery life. If not, return the unit for a replacement.
Or wait until we have root/custom recovery, and reset the battery statistics in CWM. But good luck returning it if that doesn't work.
Click to expand...
Click to collapse
Just a heads up but resetting the battery stats in CWM dose not reset the information on the battery. It resets the stat information within android it's self about the battery.
There was a google engineer a while back that had a google plus write up on it.

Valdeck said:
There was a google engineer a while back that had a google plus write up on it.
Click to expand...
Click to collapse
Just to quote
This file [batterystats.bin] is used to maintain, across reboots, low-level data about the kinds of operations the device and your apps are doing between battery changes. That is, it is solely used to compute the blame for battery usage shown in the "Battery Use" UI in settings. That is, it has deeply significant things like "app X held a wake lock for 2 minutes" and "the screen was on at 60% brightness for 10 minutes."
It has no impact on the current battery level shown to you. It has no impact on your battery life.
Click to expand...
Click to collapse

craig0r said:
Let it drain to 0%, then charge fully to 100% without interruption and hopefully you'll have normal battery life.
Click to expand...
Click to collapse
I wish people would stop saying to drain the battery to zero. This is not good for the long term life of the Li ion battery to do so. And there is also a small possibility that the phone and battery's safety circuit will not engage correctly, and the voltage will dip too low for the battery to take a charge. I've seen plenty of reports in the past of HTC Android phones (other OSes also) where XDA users drained their batteries to shutoff, and the battery was unable to take a charge.
Also, the battery meter is not remotely accurate enough for draining to zero to make a difference. Plenty good enough to drain to 10 or even 20%, charge to 100% (leave there for 30 min or so to ensure saturation charge), and repeat a couple times to calibrate the battery meter. No value added whatsoever to draining to zero. And the potential to shorten the battery life or render it unable to take a charge. So don't do it.
---------- Post added at 07:46 PM ---------- Previous post was at 07:43 PM ----------
equlizer said:
IS there a way to calibrate the battery?
Click to expand...
Click to collapse
Another peeve of mine, you calibrate the battery meter on the phone, not the battery itself. The term is probably a holdover from the old NiCad batteries, where it would be typical to "condition the battery" by draining and charging to full in order to prevent memory effects. Again, this is not a good practice for Li ion batteries.

equlizer said:
Last night before i went to bed my battery was 100% and when i woke up 8 hours later, it was at 13%. The phone was off!!!
Anyone else get this? IS there a way to calibrate the battery? That was its first charge btw.
Click to expand...
Click to collapse
Or... the fact that you turned it off and on had something to do with it, on other Android phones, if I powered it off and on, there's a 1 in 15 chance that it drains almost all the battery...

Aztecbandit said:
Or... the fact that you turned it off and on had something to do with it, on other Android phones, if I powered it off and on, there's a 1 in 15 chance that it drains almost all the battery...
Click to expand...
Click to collapse
I shut it down for the night like i always do with all my phones. Turned it on in the morning and bam, 13%.
Had it running from 8am till now and battery seems to be ok but i guess ill find out if it does it again when i turn it on tomorrow morning.
And whats wrong with turning a phone off then on? Doesnt make sense.

redpoint73 said:
I wish people would stop saying to drain the battery to zero. This is not good for the long term life of the Li ion battery to do so. And there is also a small possibility that the phone and battery's safety circuit will not engage correctly, and the voltage will dip too low for the battery to take a charge. I've seen plenty of reports in the past of HTC Android phones (other OSes also) where XDA users drained their batteries to shutoff, and the battery was unable to take a charge.
Also, the battery meter is not remotely accurate enough for draining to zero to make a difference. Plenty good enough to drain to 10 or even 20%, charge to 100% (leave there for 30 min or so to ensure saturation charge), and repeat a couple times to calibrate the battery meter. No value added whatsoever to draining to zero. And the potential to shorten the battery life or render it unable to take a charge. So don't do it.
---------- Post added at 07:46 PM ---------- Previous post was at 07:43 PM ----------
Another peeve of mine, you calibrate the battery meter on the phone, not the battery itself. The term is probably a holdover from the old NiCad batteries, where it would be typical to "condition the battery" by draining and charging to full in order to prevent memory effects. Again, this is not a good practice for Li ion batteries.
Click to expand...
Click to collapse
Good advice with one caveat. Occasional (like once every 30-40 cycles) full discharges are helpful to prevent a sort of 'memory' effect on the phones internal calibration routine. Over time, this can cause the phone to display remaining battery life incorrectly and actually run out of battery before it indicates it should.
sassafras

Try this: http://forum.xda-developers.com/showthread.php?t=1697079, it works for me, now I will testing with a few charge cycles

[Q] Sudden Unexplained Increase in Battery Drain

Stock 2.3.6 with no changes to or updates in settings or installed software and I have been taking pretty good care of the battery in a 5 ½ month old Atrix 2 directly from Motorola and not previously used.
Several days ago battery drain when in standby when from approximately 0.5% per hour to 2.5 to 3% per hour. I did the following, although not necessarily in the order listed:
Bench tested battery at a battery shop – no problem found.
Verified settings and software. Cannot find anything that appears to be draining power, initiating communications, etc.
Pulled battery.
Hard data reset and tested drain rate with no additional software and had same problem as when normal software was installed.
Several deep cycles from 3% or less to full charge. In all cases mV appear in normal range of about 3542 mV at 3% to 4347 mV at 100%, again per Circle Battery Widget.
Broke down and called Motorola and although they tried to be more helpful than normal, the only suggestion that they could offer was to try another battery, which I do not currently possess and AT&T would not allow a short term lending even had they had one available.
99% of all charging is via stock wall charger, spot use of car adapter with appropriate specs when using GPS.
Typically recharge starting in range of 5-15% and charge to 100% as indicated by Circle Battery Widget.
Battery usage in standby shows about an even split between Cell Standby, Phone Idle and Bluetooth each about 32% of usage when in standby. Have always left Bluetooth on 24/7 except when charging and battery drain was only about 0.5% per hour. I even tested for several hours with bluetooth off and this did not affect the rapid drain.
Contacts are clean.
I even use Motorola USB cables both from my PC for data transfer and also with the wall charger.
No exposure to excessive heat/cold.
If anyone has any thoughts, I would greatly appreciate any help. Otherwise my next steps are to call Motorola back Sunday morning (U.S. time zones) and probably order an OEM battery from a reputable source allowing for U.S. holiday on Monday. Unsure how Motorola will treat this as warranty since 1) this phone is a replacement for Atrix 4G problems whose warranty would be expired, and, 2) batteries have weak warranty coverage anyway since so much of that is beyond their control.
Thanks

Same here recently.
My battery life has gotten a lot shorter (and cell reception worse). Most of my 'battery usage' is coming from cell stand-by.

Overcharged Battery
How long are you leaving the A2 on the charger? MTL you may have "overcharged" the battery, overloading the memory in the battery itself, therefore resulting in less usage time from a "fully charged" battery.
Typically, as a sales rep, I recommend my customers only charge their phone for the full 4-8 hours, when it is the FIRST time they charge their phone. typically after that, it takes only 2-2.5 hours to provide the phone with a full charge. Over charging will fry the memory and make the battery hold less charge and over a period of time eventually kill the battery, making you have to buy a new one.
P.S. If I am completely off base please let me know. Yes I am noob, but this info was actually part of my training courses so I'd love to tell them they're wrong. Hope I was helpful.

FalConn232 said:
How long are you leaving the A2 on the charger? MTL you may have "overcharged" the battery, overloading the memory in the battery itself, therefore resulting in less usage time from a "fully charged" battery.
Typically, as a sales rep, I recommend my customers only charge their phone for the full 4-8 hours, when it is the FIRST time they charge their phone. typically after that, it takes only 2-2.5 hours to provide the phone with a full charge. Over charging will fry the memory and make the battery hold less charge and over a period of time eventually kill the battery, making you have to buy a new one.
P.S. If I am completely off base please let me know. Yes I am noob, but this info was actually part of my training courses so I'd love to tell them they're wrong. Hope I was helpful.
Click to expand...
Click to collapse
The phone electronics will not actually allow overcharging. you will have problems if you do overcharge it but you can't do that while it is in the phone.
Sent from my MB865 using XDA

Thanks but in addition to any designed protection against overcharging I also pull the phone off the charger as soon as practicable after hitting 100% per Circle Battery with the exception being when using GPS which means that the phone will charge very slowly to 100% and remain connected to the charger until the next stop in my trip. The phone charges more slowly on the car adapter because the screen is constantly on along with running GPS and music software and streaming music via bluetooth.
I also try to make sure that I always disconnect the charger before starting or turning off the vehicle's engine. It may not be necessary anymore but that is an old habit.

Happening to me recently, before the battery lasted very long, but the past few days I arrive at night with 20% left. I tried doing a factory reset but it still the same. Also, the "cell standby" is the biggest consumer? I don't know what does that mean...

nahuelarg86 said:
Happening to me recently, before the battery lasted very long, but the past few days I arrive at night with 20% left. I tried doing a factory reset but it still the same. Also, the "cell standby" is the biggest consumer? I don't know what does that mean...
Click to expand...
Click to collapse
As far as I know 'cell standby' is basically your phone searching for a signal.

Remove any app that u suspect. If u have installed battery indicator pro, that's the culprit. Same happened to my phone when i had battery indicator pro. Install juice defender ultimate. Works a bit. Clear off d ram and reboot
Sent from my MB865 using xda premium

For what little it may be worth replacing the battery showed the same problem and motorola now admits that this might be a motherboard issue and wants me to send the device to them for repair. They had their level 3 contract tech support review what I had done for troubleshooting and they agreed that the above steps plus replacing the battery had exhausted all possible options that can be taken outside a repair depot.
Those with similar problems may want to do the same and finally call motorola.

goodgulf said:
For what little it may be worth replacing the battery showed the same problem and motorola now admits that this might be a motherboard issue and wants me to send the device to them for repair. They had their level 3 contract tech support review what I had done for troubleshooting and they agreed that the above steps plus replacing the battery had exhausted all possible options that can be taken outside a repair depot.
Those with similar problems may want to do the same and finally call motorola.
Click to expand...
Click to collapse
Wonderful, I am on my 3rd Atrix 2. Returned two previous because of the sd card reader/compatibility problems. The third one I received hasn't had the problem but now I can't go more than 8 hours without the battery going dead.
Cell standby is normally over 33% and Phone idle is normally at 30% or higher.
This happens whether I leave wifi on all day or turn it off.
Stock 2.3.6
I work from home and I have 5 bar signal strength from my house so there is no reason for my phone to constantly be searching for network signal.

Still happening to me. Today I was talking with an AT&T representative via online chat, and they only tell you to disable background data, and set it to super saver mode. They didn't want to listen that the phone before lasted until midnight with the battery still green and that now it goes red. The guy said that the phone is supposed to last 8.5 hours, since that is the talk time. I tried to explain that the talk time didn't work like that, but no good.
Finally, I went to an AT&T store and inquired about the issue. Since I'm within the 1 year warranty they are going to send me a new battery. If that doesn't fix the problem they said they would change my phone.

[Q] Battery temp too low and not charging

Hi All,
I have this problem of the tab not charging,
Was searching all week and had no luck. Seems like a common problem among phones especially on SGS and SGS2.
When it was on , it showed a message saying charging paused Battery temp too hot or cold.
Now the battery is drained, and when charged to the mains, it would show a yellow triangle, and a thermometer.
See picture attached..
http://i81.photobucket.com/albums/j236/akatora1984/20130703_204829.jpg
Just wondering if anybody had any luck figuring out why this is happening and any work around?
Just to rule things out, Tab had not been in any wet places...

service manual
I was going through the service manual and it was saying,
"If the battery will no longer charge, completely you need to replace it with a new battery. Take you device to your local service centre.."
Thoughts?..
akatora1984 said:
Hi All,
I have this problem of the tab not charging,
Was searching all week and had no luck. Seems like a common problem among phones especially on SGS and SGS2.
When it was on , it showed a message saying charging paused Battery temp too hot or cold.
Now the battery is drained, and when charged to the mains, it would show a yellow triangle, and a thermometer.
See picture attached..
http://i81.photobucket.com/albums/j236/akatora1984/20130703_204829.jpg
Just wondering if anybody had any luck figuring out why this is happening and any work around?
Just to rule things out, Tab had not been in any wet places...
Click to expand...
Click to collapse

Well first if you still got factory warrenty...
get it fixed by samsung...
If you want to save a few dollars you could attempt to pry the screen out from the back cover and charge the battery externally then if thats a NO GO buy another battery online and then put it back together.
Ive read before with charging problems that if teh battery gets completely Flat it wont have enough charge in it to activate the charging circuits.eg when you plug in charger you get black secreen and no battery icon,you need to pop the screen out and remove the battery and charge it from a external source.then replace it.
Never seen anything about your particular problem though...

I will enquire to Samsung, not expecting much because, tab7.7 was never officially launched in Aust.
Ho do you go about charging, externally?
MRBR7 said:
Well first if you still got factory warrenty...
get it fixed by samsung...
If you want to save a few dollars you could attempt to pry the screen out from the back cover and charge the battery externally then if thats a NO GO buy another battery online and then put it back together.
Ive read before with charging problems that if teh battery gets completely Flat it wont have enough charge in it to activate the charging circuits.eg when you plug in charger you get black secreen and no battery icon,you need to pop the screen out and remove the battery and charge it from a external source.then replace it.
Never seen anything about your particular problem though...
Click to expand...
Click to collapse

Try plug in wall charger for 30 mins then hold power button for 15 seconds.This is good for waking it out of deep sleep and getting it to trigger charge.
another thing is possible fix from factory reset in twrp?
i would try a few things like this and leave opening it up as a last resort.
for your info google how to open up galaxy tablet and you can find pics
how to prise the screen out of the back cover.ive bought tools for this but havent done it yet as worried about damadging screen or cracking it.
there are clips around it and you have to pop the clips out.
Australia samsung probly wont fix it as not australian model..

another thing to ry is charge using ipad 2ma charger...

Experienced exactly the same issue in May 2013. It was functioning well and charging without problem all along and suddenly turned out like this. Tried different method to have it charged but no luck. I have to bring it back to the service center for repair finally.

sk78 said:
Experienced exactly the same issue in May 2013. It was functioning well and charging without problem all along and suddenly turned out like this. Tried different method to have it charged but no luck. I have to bring it back to the service center for repair finally.
Click to expand...
Click to collapse
Did the Samsung guys tried to explain anything about this?
What did they replace? Did they just replace a battery?
Please let me know.
Cheers
JK

Galaxy GT-N5110 Note 8.0 - Charging paused...battery temperature too low...
I purchased a Galaxy Note 8.0 (GT-N5110) last July. It's been working great until yesterday when a window popped up stating "Charging paused. Battery temperature too low."
I tried shutting the Note down and charge the battery whilst turned off. It seems to be charging just fine at the moment. Will check it in a few hours when the battery has been fully charged.
I installed an app called Battery Monitor Widget. It's reporting that the battery temp is around -2c to -4c while charging.
UPDATE: Battery is charged @ 100% and the Note is still on AC power. Battery Monitor is reporting that the battery is -3.7c then to -5.9c...
My next test is to completely drain the battery and see about charging then.... Will keep you posted...
Can't post screenshots for now...
Skol!
~Z
---------- Post added at 09:02 PM ---------- Previous post was at 08:51 PM ----------
TheZStation said:
I purchased a Galaxy Note 8.0 (GT-N5110) last July. It's been working great until yesterday when a window popped up stating "Charging paused. Battery temperature too low."
I tried shutting the Note down and charge the battery whilst turned off. It seems to be charging just fine at the moment. Will check it in a few hours when the battery has been fully charged.
I installed an app called Battery Monitor Widget. It's reporting that the battery temp is around -2c to -4c while charging.
UPDATE: Battery is charged @ 100% and the Note is still on AC power. Battery Monitor is reporting that the battery is -3.7c then to -5.9c...
My next test is to completely drain the battery and see about charging then.... Will keep you posted...
Can't post screenshots for now...
Skol!
~Z
Click to expand...
Click to collapse
UPDATE: Now on battery, the battery temperature is reporting at -4.7c...

I some how fixed it by accident..
First I thought it was a faulty battery only to realise that replacing the battery did not work...
Next I followed one of the remedies I read where it said to connect the charger to the unit with the wall charger connected and connect the battery (there is a ribbon cable).
Some how it worked. Started charging etc.
I noticed that the battery had full charge as I had it plugged in for a whole night before when i was experiencing the TEMP too low symptoms.
It seemed as if it was charging all along but was showing that stupid error on the surface...
Hope this helps some people.
JK

Have this issue with one of my S4's (fortunately I have a couple so can swap things about)
The phones had a life of luxury on my desk, except it suddenly started reporting 'battery temperature too low' issue and not charging
The same battery in another S4 is absolutely fine, so the battery itself is ruled out (and indeed 2 other batteries will not charge in the unit having problems, despite working fine in other S4's)
It seems that something has died in the S4 itself internally. and is likely going to require replacement/fix at a service centre.
How many other people have this? - it could be an issue with the device build.

Not charging more than 96%

My note 20 ultra won't charge above 96% battery level
I did updated it this month to latest version.
No new app installed.

Never a good idea to charge Li's to 100% regularly.
May indicate a battery failure. Check closely for any sign of battery bulging. If present, don't charge and replace immediately as it can cause permanent damage or worse

It does charge normaly untill 96%. It just auto disconects the charging at that value. I recorded the screen to show the problem

Note20U said:
It does charge normaly untill 96%. It just auto disconects the charging at that value. I recorded the screen to show the proble
Click to expand...
Click to collapse
What's the battery voltage when it shuts down?
If there's no swelling and it has good capacity I wouldn't worry about it unless it's within the return window.
You could try calibrating the battery.
If it's capacity has dropped a lot especially in a short amount of time it indicates a battery failure... been there, just done that!☠

I had this problem, it randomly stopped charging around 80% or so. I sent it in for repair 3 times -- each time they said "We see nothing wrong with the phone." On the 3rd time I send in a link to a Youtube video and pictures of the phone stopping at odd times. Then they refunded my purchase price. I bought a new Note 20 ultra, hoping the same thing doesn't happen again.
Post back if you find a resolution.