erratic touchscreen behaviour while charging - G2 Q&A, Help & Troubleshooting

I have installed stock v20f via OTA and did factory reset to my phone to avoid any problems.
While charging, the touch screen goes crazy and does not register many times the right touches. It is very apparent when I press and hold the home soft button. It does open random apps!
When the phone does not charge, everything works as it should. I have updated the touch firmware many times via the hidden menu but it did not work. I have done factory reset once again but nothing has changed.
I did not have this issue with v20b. Any ideas ??

might be coincidence and the charger has gone bad
can you try another?

I checked again today, same behaviour..
The phone works without problems when I charge via usb cable in computer. I have used an HTC charger with 1A and again worked ok.
Maybe the 1.8A coming from stock charger produce too much heat that make the touchscreen probelmatic ? I say it because we are in the middle of the summer and I live in a very warm country :
The charger otherwise works ok so I cannot make a warranty claim I suppose.

Related

Tytn Won't Charge

I have noticed that for the last week my Tytn won't always charge itself up either when its in its cradle or is being charged via the charging lead.
I have no idea what has brought this on. The solution I am using at the moment is to soft boot, which seems to solve the problem for a while. For the techies on here I am using the standard HTC Win5 Rom, straight out the box.
Has anyone come across this problem and, if yes, knows what the solution is please? It was only because my low battery alarm kicked in the other day that I realised there was a problem.
As I use the kit for work I cannot afford to have it not charge up.
Many thanks in advance for your help.
WB
Caveat - Yes, did search first on here and elsewhere before posting.
Could be hardware (at Device) / could be software. Without testing these things out it's impossible to say. I suppose a quick test of the physical contacts of the device would be to switch on and connect the charger and by gently moving the connection, see if the amber charging LED goes on off.
In the end I always think with this kind of problem a hard reset saves a lot of time testing this and that. If there is nothing you can pin down as an obvious change/installation you made before this started, then I'd do a hard reset.
Of course you are fully prepared for this with full backups taken at key installation stages?? - Hope so.
Mike
The only thing I've heard of is that using USB cables/cradles, car chargers and non-standard wall chargers (such as for motorola) are ok for trickle charging but if the battery goes low you need to use the original wall charger supplied with the phone.
I know this was the problem on my Wizard - wouldn't charge a low battery with a motorola charger but fine with the original.
Mike,
I think I will do a hard reset as a last, last, resort only if all other options are well and truly exhausted. I rebuilt the damned thing for the umpteenth time only 2 weeks ago and I absolutely don't want to go through that pain again.
The frustrating thing is that for the first time since I owned the Tytn (6 months) all the problems I did not know about before I bought it had finally been resolved (excepting the freezing of TomTom, which still remains outstanding).
So just when I thought I could finally start to rely on the Tytn as a fully functioning relible working tool we get this.
I owned a Sony P900 for over 3 and a half years as a business tool (grant you the PDA functionality was a tad restricted compared to the Tytn) and it never failed me once! If it wasn't for a problem with the touch screen and me thinking it was time for a change I would still be using it today.
Anyone else any other suggestions on this problem please? Wiggling the charging cable in the mini-usb port makes no difference. Only a reboot does at this time.
So damned frustrating!
WB
hungry TyTN
Hi,
I have a similar problem. I had a go for the WM6 from LVSW (2007-05-19) and the latest Radio (1.41.00.10) and a brand new out of the box TyTN.. First thing I noticed was that the unit discharges itself very quickly. I've tried various radios without any good luck too. I think it killed my battery, at least it went so low that I could'nt recharge it normally. I had the RED LED blinking fast, constant RED and sometimes AMBER. My tip is to never let the battery fully discharge here.. I had to kickstart it with 3 AA-batteries in serial, and hooked up + and - wires to the TyTNs battery so it could have a little power, or else the TyTN would not charge it anymore. I assumed it could be my old SIM and/or the battery, so I went to th store and got a new battery as replacement for testing this. I am now able to charge, but I the power consumption is far beyond what I expect, it is like 341 ma read with ABC Power Meter....! Even with radio off, wifi off, receive incoming beams off, BT off, screen to minimum brightness, nada... I was expecting a lot less... This hungry device will not last many hours, and the battery does even produce much heat during standby operation, which is not good besides from a hand-warmer in the pocket during winter time maybe... I have also tried using Bandswitch to disable UMTS as maybe the UMTS reception here is not super good, but still working... Even talking on the phone while charging it drains the battery heavily.... to empty...
Besides from all this the WM6 from LVSW seems to be super quick and stable, maybe the very best one to pick for a HERMES.
I am desperate to find a conclusion here...
heeelp..
Update:
I happened to purchase a faulty device!!! There was indeed a HW error on my brand new device so I got it swapped with another one that works. Not all problems are SW-bugs..
Thought I would come back on this thread.
In the end I had to do a hard reset and rebuild as other problems started to manifest themselves and rebuilding became the easiest option.
Rebuilding has solved the problem; however it might interest you to note that this time I rebuilt the Tytn just like I would build a PC. The OS built itself first, with its associated apps, then I added any other additional OS tools, eg SPB Mobile Shell. I then grouped my apps into a logical order and installed them one by one.
After each install I rebooted the PPC, checked that the last app installed ran ok, then tested every other app to see if they ran as well BEFORE installing the next app. This process was a little tedious but it seems to have paid off.
I have to say though that having rebuilt this piece of kit from scratch at least 20 times in the last 6 months, I just cannot count on it as a reliable business tool in the same way as I did with my previous Symbian device. Shame given how much I spent on it.
When my next upgrade is due a Windows mobile device WON'T be on my list!
WB
Wacky - Get a full back-up tool like SPB backup and you can avoid all that pain. Hard Reset to Restoring a full backup - 10 minutes maybe. Much better than re-installing all those apps everytime you hard reset. And you can create a backup before and after each installation if you wish.
Mike
Mike,
Thanks for the tip. Must admit I had not thought of using SPB backup in the way that you suggest (can't see the wood for the trees sometimes).
Now that I think I have a stable system I will back it up using this tool and create a "line in the sand", in terms of a good system backup.
I still remain to be convinced on the stability/suitability for sustained business use though.
Appreciate your input.
WB
Similar (Battery Meter) Problem
This week, my phone reset for some reason and came up with the screen which shows the current IPL and SPL. The phone still has all the apps and data I installed, so it was not a hard reset. This happened with a 1/2 charge on the battery.
Since that happend a full charge now shows as a 1/2 charge only on the meter and this is as high as the meter will show. The phone still lasts just as long, so there is no physical battery problem.
Anyone know how to fix this without a true hard reset.
Thanks
Mardig,
The only suggestion I have is to hard reset the unit and then rebuild it from scratch. Worked for me.
In any case it may be advisable to do this as it sounds like you have other problems.
Once rebuilt I suggest you take up Mike Channon's suggestion to get a tool and backup the device. That way if you have further problems you at least have a line in the sand to refer back to.
By the way, I am not ruling out a hardware problem in your case. However my starting point would be my suggestions above.
Good luck
WB
Strange TyTN behavior when charging
I bought a car charger for my TyTN and used it for ~4-5 months without a problem. One day a fuse went off and after replacing it with a new one and connecting to TyTN, a TyTN stopped charging completely. I checked at home with an original wall charger - nothing. I was stupid enough to try the same car charger with my second TyTN - not surprisingly it burned the other one too :-(
I got them both fixed, a car charger replaced with a new one, so everything should have been working fine. The following happened:
1. First time a car charger is connected, it works fine and the TyTN is charging.
2. Disconnecting a charger and reconnecting it back after couple of seconds restart charging, however this stops after 1 sec and the screen shows as it is not connected.
3. Repeating step 2 does nothing - no charging starts at all.
4. Soft reset - go back to step 1.
5. When TyTN off and car charger connected - charging is working - amber light is on.
6. Wall charger (original), TyTN on or off - charging is working - amber light is on.
I did hard reset as well thinking it might be a broken driver problem, but it didn't help. Tomorrow will try to reload ROM.
Any ideas?
Help will be appreciated (before I take it back to lab and spend another $40 for repair)
Cheers
eznil said:
I bought a car charger for my TyTN and used it for ~4-5 months without a problem. One day a fuse went off and after replacing it with a new one and connecting to TyTN, a TyTN stopped charging completely. I checked at home with an original wall charger - nothing. I was stupid enough to try the same car charger with my second TyTN - not surprisingly it burned the other one too :-(
I got them both fixed, a car charger replaced with a new one, so everything should have been working fine. The following happened:
1. First time a car charger is connected, it works fine and the TyTN is charging.
2. Disconnecting a charger and reconnecting it back after couple of seconds restart charging, however this stops after 1 sec and the screen shows as it is not connected.
3. Repeating step 2 does nothing - no charging starts at all.
4. Soft reset - go back to step 1.
5. When TyTN off and car charger connected - charging is working - amber light is on.
6. Wall charger (original), TyTN on or off - charging is working - amber light is on.
I did hard reset as well thinking it might be a broken driver problem, but it didn't help. Tomorrow will try to reload ROM.
Any ideas?
Help will be appreciated (before I take it back to lab and spend another $40 for repair)
Cheers
Click to expand...
Click to collapse
This is a known issue. It also appears you've realised the soft reset workaround:
In Car charging
(May be relevant to USB/Mains charging also)
Hermes only charges when switched off
Pulling out charger lead (or interrupting power supply) while charging in car (with device on or off ) may result in Hermes only charging while turned off
Possible Solution:
a.) Connect charger with power on
b.) Switch on Hermes
c.) Soft reset whilst connected
Hermes should now charge whilst on or off.
I charge mine in the car but I do not use a car charger but a 12 volt to 240 volt inverter - so I can plug in a mains charger. Never have problems with this and I can also use it to power my laptop.
Examples here of cheap and expensive ones - small ones and large ones:
http://www.sailgb.com/c/12v_inverters_converter/
Mike
mikechannon said:
This is a known issue. It also appears you've realised the soft reset workaround:
In Car charging
(May be relevant to USB/Mains charging also)
Hermes only charges when switched off
Pulling out charger lead (or interrupting power supply) while charging in car (with device on or off ) may result in Hermes only charging while turned off
Possible Solution:
a.) Connect charger with power on
b.) Switch on Hermes
c.) Soft reset whilst connected
Hermes should now charge whilst on or off.
I charge mine in the car but I do not use a car charger but a 12 volt to 240 volt inverter - so I can plug in a mains charger. Never have problems with this and I can also use it to power my laptop.
Examples here of cheap and expensive ones - small ones and large ones:
http://www.sailgb.com/c/12v_inverters_converter/
Mike
Click to expand...
Click to collapse
Hi Mike.
Thanks for your prompt response.
I did read that thread, however it seems that it doesn't explain point 2 in my explanation, does it?
Update: tried the method explained, however the situation is still the same - both points 2 and 5.
Regarding the DC-AC inverter - do you use a wall charger or USB output (if there is one, I found one that has both main and USB).
Cheers
eznil said:
Hi Mike.
Thanks for your prompt response.
I did read that thread, however it seems that it doesn't explain point 2 in my explanation, does it?
Cheers
Click to expand...
Click to collapse
Unless I misunderstand something - one of the primary causes of the problem is the disconnection whilst charging leading to a refusal to charge when re-connected. To quote my post:
"Pulling out charger lead (or interrupting power supply) while charging in car (with device on or off ) may result in Hermes only charging while turned off "
I realise of course this does not explain things and is just a statement about what happens.
Mike
mikechannon said:
Unless I misunderstand something - one of the primary causes of the problem is the disconnection whilst charging leading to a refusal to charge when re-connected. To quote my post:
"Pulling out charger lead (or interrupting power supply) while charging in car (with device on or off ) may result in Hermes only charging while turned off "
I realise of course this does not explain things and is just a statement about what happens.
Mike
Click to expand...
Click to collapse
THe funny thing is that the other TyTN I have doesn't suffer the same behavior and charges fine, even though I disconnected and connected many times while charging.
Yeap, it's strange, unexplainable and most of all extremely annoying.
Thansk a lot for your help.
Solved!!!
Hi.
I am happy to tell that I managed to figure out how to overcome that problem. I hope it will work for all users - I tried it with 2 different TyTNs and it was OK.
The solution is to plug/unplug the USB charger only when the device is off - not a complete shutdown by long press on Power button, but a short one.
If it's OK, when plugging the lead the power button lights up in <1 sec. If not, it takes ~5 sec to go on.
Best regards,
i discovered today....when i plugged my hermes into the car charger, that it wasnt charging.
after a soft reset it charged. an then.....no problems untill about 22:00 pm. i plugged it again and...same thing, it needed a reset to charge.
what could cause this? igo may way and bluetooth gps. coz i think this is the reason.
gangstar said:
i discovered today....when i plugged my hermes into the car charger, that it wasnt charging.
after a soft reset it charged. an then.....no problems untill about 22:00 pm. i plugged it again and...same thing, it needed a reset to charge.
what could cause this? igo may way and bluetooth gps. coz i think this is the reason.
Click to expand...
Click to collapse
Please read the thread - this strange behavior is described in details.
Try the solution in my post above - it workes for me, hoefully for you too.
Goos luck.

Cause of Touch Screen Failures

Hey everyone,
Throughout the last couple of months I've been reading a lot of touch screen stop working after a while.
Maybe we can all work together and figure out the cause.
So far i notice, people using hardware keys could cause touch screen to stop working, temperature change could cause issue, some people stated andriod could cause issues.
Just a couple of ideas.
Luckych
We'll my screen became unresponive when I turned it on with the end call button out of the blue one day, the touch did work with all the other keys though. However, within a week after that, none of the buttons made the touchscreen responsive again.
I just got my phone back yesterday from HTC warranty's repair center and they replaced the screen and the hardware keys.
However, now I can't seem to charge the phone correctly unless i apply pressure to the micro usb cable when it is plugged in the phone. If I just plug it in and leave it alone, it won't charge or connect to the computer. Not sure if it's the USB Cable or the phone, I have to buy another micro usb cable to test if it's the cable, else, it has to go back to htc again and I won't see it until a few weeks

[Q] LG G2 not charging at all!

Hi all,
I just bought an LG G2 (D802 international unlocked version) and the behavior when plugging in the charger cable is very strange:
When I plug in any charger (tried 4 different ones with different cables incl. stock), the phone is not charging.
BUT, there are a few strange things happening:
1. On the lock screen it shows "Charging"
2. In the settings menu under the battery menu it shows "not charging" (this is different from being unplugged, then it shows something like "discharging")
3. Sometimes the popup comes up when I plug it in, but not always.
3. When I turn the phone off and plug the cable in, the display lights up (also the LED) and it shows the "charging" battery symbol.
IN ANY CASE, THE PHONE BATTERY IS NOT CHARGING!
Here is what I tried so far:
- Used 4 different chargers & cables
- Tried to charge via USB
- Did a factory reset
Nothing helped so far.
I suppose that its a hardware failure, but maybe someone has a different suggestion/solution?
Only thing i can recommend is maybe do a factory reset to see if that corrects it which i doubt it will. Other then that i would have the phone warrantied then.
If its a software issue then that is at the kernel level. I would assume its a hardware issue though
Sent from my LG-D802 using XDA Premium 4 mobile app
x714x said:
Only thing i can recommend is maybe do a factory reset to see if that corrects it which i doubt it will. Other then that i would have the phone warrantied then.
If its a software issue then that is at the kernel level. I would assume its a hardware issue though
Sent from my LG-D802 using XDA Premium 4 mobile app
Click to expand...
Click to collapse
i think so too. already tried the factory reset, but no luck....
js931 said:
i think so too. already tried the factory reset, but no luck....
Click to expand...
Click to collapse
Maybe op off back cover and see if battery is loose? Warranty.....?
RubbleTea said:
Maybe op off back cover and see if battery is loose? Warranty.....?
Click to expand...
Click to collapse
I sent it back to get a replacement. Was just wondering: Is it possible to remove the back cover on that phone without damage/loss of warranty?
js931 said:
I sent it back to get a replacement. Was just wondering: Is it possible to remove the back cover on that phone without damage/loss of warranty?
Click to expand...
Click to collapse
Yup some ppl I heard were taking off to buff the back cover shine off....hope you get it soon!
Same problem
js931 said:
Hi all,
I just bought an LG G2 (D802 international unlocked version) and the behavior when plugging in the charger cable is very strange:
When I plug in any charger (tried 4 different ones with different cables incl. stock), the phone is not charging.
BUT, there are a few strange things happening:
1. On the lock screen it shows "Charging"
2. In the settings menu under the battery menu it shows "not charging" (this is different from being unplugged, then it shows something like "discharging")
3. Sometimes the popup comes up when I plug it in, but not always.
3. When I turn the phone off and plug the cable in, the display lights up (also the LED) and it shows the "charging" battery symbol.
IN ANY CASE, THE PHONE BATTERY IS NOT CHARGING!
Here is what I tried so far:
- Used 4 different chargers & cables
- Tried to charge via USB
- Did a factory reset
Nothing helped so far.
I suppose that its a hardware failure, but maybe someone has a different suggestion/solution?[/QUOTE
i 've got the same problem , which you mentioned above, could you please tell me did you get any solution to get rid off from this trouble . kindly reply
Click to expand...
Click to collapse
I got a replacement unit, it was a hardware issue.
The same problem i am facing with my G2 Sprint LS980 and i am pretty sure this is not hardware problem because my phone had signal issues and LG charged repair fee around US$ 55. My phone was not rooted before repair and also my phone was charging fast too. It has installed ZVD7 ROM. But once i get my phone it was completely changed. They rooted my phone, They converted my ROM from ZVD7 to Cloud G3 2.2 and they also installed TWRP recovery. But still phone is not charging same like as you posted. I just noticed another thing phone is perfectly charging in TWRP recovery mode. Therefore i am 99% sure it's not hardware issue. 2nd issue is that phone is also not detect with my PC. I tried different drivers but failed. Anybody can help me or suggest me any suitable ROM and provide me correct driver or PC suite?
having same issue , have u solved??
Bilgramiz said:
The same problem i am facing with my G2 Sprint LS980 and i am pretty sure this is not hardware problem because my phone had signal issues and LG charged repair fee around US$ 55. My phone was not rooted before repair and also my phone was charging fast too. It has installed ZVD7 ROM. But once i get my phone it was completely changed. They rooted my phone, They converted my ROM from ZVD7 to Cloud G3 2.2 and they also installed TWRP recovery. But still phone is not charging same like as you posted. I just noticed another thing phone is perfectly charging in TWRP recovery mode. Therefore i am 99% sure it's not hardware issue. 2nd issue is that phone is also not detect with my PC. I tried different drivers but failed. Anybody can help me or suggest me any suitable ROM and provide me correct driver or PC suite?
Click to expand...
Click to collapse
having same issue on lock screen say charging but in setting -> battery say not charging but when plunged out say discharging , have u solved??
Same peoblem here
sumeetG said:
having same issue on lock screen say charging but in setting -> battery say not charging but when plunged out say discharging , have u solved??
Click to expand...
Click to collapse
Not yet Dear...It is the piece of junk for me. Now my ROM has been deleted. I want it back
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
Maybe putting the back cover on the phone is causing a grounding problem or shorting a circuit. Maybe put some insulating material on the inside of the back cover and then put on the phone?
audit13 said:
Maybe putting the back cover on the phone is causing a grounding problem or shorting a circuit. Maybe put some insulating material on the inside of the back cover and then put on the phone?
Click to expand...
Click to collapse
Yes, I thought about doing this, trying one connectors at a time. Do you think that the sticky part of a post-it note like do? I don't have electrical tape lying around atm :/
Anything that is non-conductive should be fine since it is just a test.
You could also use a non-sticky piece of paper between the cover and the phone's components.
decon89 said:
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
Click to expand...
Click to collapse
So you solved the problem?
I have very same problem decon89 described - I replaced screen and cannot charge it properly. And even worse: charging is possible with the phone being switched off completely. And after phone is charged - I cannot turn on the phone unless i open back cover and unplug-plug battery cable. Phone MAY turn on without unplugging-plugging battery, but it is blind luck. Yesterday i accidently turned off my 100% charged lg g2 and could not turn it back on during whole day. If someone has a solution please share it.
Hi everyone,
I'm so sorry for not following up on this thread. I haven't fix the problem yet, but it worked for same time, then started acting up again.
I've put a few strips of electrical tape on the bottom part of the phone, behind the black plastic thing. I did this because of an issue with my display having a loose connection. This fixed the screen problem, but the charging fault came back.
The idea of putting a piece of paper between the battery and cover did not work at the time, but I'll try it again tonight.
As I'm writing this, the phone is charging with the cover half off. It works, charges, no problem. I can even use the phone even though the bottom part of the cover is off.
decon89 said:
I have the same problem. The phone is acting very inconsistent with charging after I replaced my broken display. This is the second time I replace the display, and it didn't cause any issues the first time. Basically, my phone won't charge more than maybe 2% over a period of 12-16 hours. The phone does not discharge as others have mentioned in previous posts.
No one seems to have a solution to this problem. Some people online are arguing that is it a "security measure" LG have installed into the phone, which makes it impossible to properly charge the phone without an official LG charger/cable. However, I never used the official charger, but been using various chargers and cables without problems!
But now comes the really weird part. I decided to take off the backcover, and then plug in the charger to see if pushing down on different parts would somehow fix it (loose connections etc..). But before I got around to test such hackery, I plugged in the USB and the phone suddenly started charging! I proceeded reproduce the problem/solution, and the result was very confusing: no real charging with backcover on; perfect charging with the backcover off.
Would anyone here on XDA have any ideas as to why this is happening? I've been thinking that the connectors on the backside on the cover might have something to do with it. Not having the backcover on does not seem to affect the phone at all (i can use it like I would without the cover).
TLR: My phone won't charge with the backcover on, magically works when the backcover is off. I suspect that it might have something to do with the connectors on the back of the cover.
Click to expand...
Click to collapse
same here with my phone when i take off the back cover it started charging.

Constant vibrator repeat when connected to charger - not charging though

My son has an SM N910F note 4. Completely stock. It suddenly stopped charging after a long international flight and now when connected to the charger the battery charging image appears, but then after a brief pause disappears, and the vibrator motor vibrates continuously at 1 sec intervals after that. The phone boots into stock rom OK and also into recovery and fastboot mode.
I have tried different cables (several), 4 different chargers , cleaned the connector on the phone (and cable connectors) with air and alcohol. Contacts seem to be OK on visual inspection. Cables and chargers work fine on other devices including a stock rooted Galaxy S4. Also, purchased a new battery but it did not change any of the above symptoms. When I tried to access the Note 4 from my Linux PC, MTP showed nothing and adb devices and fastboot devices saw nothing lsusb didn't see anything either. Different cables didn't alter this.
One odd thing is that when I boot into recovery I do not see the recovery menu but it immediately reports that it is installing an update and after a minute stops with the "failed to find command " error message. We are unaware of any recent uninstalled OTA updates though. Then the recovery menu reappears.
Can someone suggest for me what might account for these symptoms. I have no idea, but when the device was not visible in my Linux machine I began to suspect a faulty USB/charging port. Trouble is we are running out of battery charge to test anything now and no way of recharging
gc2712 said:
My son has an SM N910F note 4. Completely stock. It suddenly stopped charging after a long international flight and now when connected to the charger the battery charging image appears, but then after a brief pause disappears, and the vibrator motor vibrates continuously at 1 sec intervals after that. The phone boots into stock rom OK and also into recovery and fastboot mode.
I have tried different cables (several), 4 different chargers , cleaned the connector on the phone (and cable connectors) with air and alcohol. Contacts seem to be OK on visual inspection. Cables and chargers work fine on other devices including a stock rooted Galaxy S4. Also, purchased a new battery but it did not change any of the above symptoms. When I tried to access the Note 4 from my Linux PC, MTP showed nothing and adb devices and fastboot devices saw nothing lsusb didn't see anything either. Different cables didn't alter this.
One odd thing is that when I boot into recovery I do not see the recovery menu but it immediately reports that it is installing an update and after a minute stops with the "failed to find command " error message. We are unaware of any recent uninstalled OTA updates though. Then the recovery menu reappears.
Can someone suggest for me what might account for these symptoms. I have no idea, but when the device was not visible in my Linux machine I began to suspect a faulty USB/charging port. Trouble is we are running out of battery charge to test anything now and no way of recharging
Click to expand...
Click to collapse
Can you boot to download (odin ) mode ?
HW failure
Unfutunately, it is a HW problem. You should the USB connector panel.
Search note 4 flex usb on ebay or Ali.
android freek said:
Can you boot to download (odin ) mode ?
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Click to collapse
Yes, I can boot into Odin mode or recovery, but not recognised by laptop. Also, when charger is plugged in the Note 4 will not boot from power button. But as soon as I remove USB cable it will boot. Also, since posting I tried a factory reset and formatted data and cache from recovery. No change though. Still vibrates every 2 secs and will not boot. Battery does not charge at all during this process.
It's still under warranty so I don't want to try the eBay path suggested by Balint320 for repairing it myself at this stage.
Fixed?
Did you get this resolved? Mine is doing the exact same thing since a t-mobile security update. Have tried the master reset twice and clearing the cache. Tried the original charger and several others.
i am having the same problem on n910g, it just stopped charging.I tried everything, from different chargers to a new battery, but no avail.it just vibrates at 1 sec continuously and does not charge at all.
I still have 1 month warranty left but It was rooted and everything so..if there is a way to migrate to fully stock ROM please guide me, so that I can take it to service center.
IronMan_in said:
i am having the same problem on n910g, it just stopped charging.I tried everything, from different chargers to a new battery, but no avail.it just vibrates at 1 sec continuously and does not charge at all.
I still have 1 month warranty left but It was rooted and everything so..if there is a way to migrate to fully stock ROM please guide me, so that I can take it to service center.
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The only thing I can suggest is, of you are able to get into download mode, is downloading the stock ROM and reinstalling with Odin. Some suggest holding the power button down for a few seconds after removing the battery to make sure that all charge to components is drained before restarting.
Have you tried installing Smartswitch on your PC to see if it detects a problem and is willing to correct it? At least, it will install the correct USB drivers to ensure Odin works fine. Sometimes I think Samsung need a kick in the butt for their slack approach to software reliability and utilities for maintainence and repair. Try just sending it back under warranty anyway if you can't get it to work. Maybe hardware failure. Good luck.

Phone Just Died

So earlier this week, I was using my phone with Google Maps like usual. I plugged in my vehicle USB port to the phone to save battery. I had +50% on the phone and 1A USB port. So after like 5 minutes of it being plugged in, my phone just turned off. I tried turning it back on and all I get is the boot screen, then AXON shows, and puff... Phone off again. I tried booting into recovery but phone turns off before TWRP finishes loading. Phone doesn't seem to be charging. Tried different cables and charger to charge phone but nothing. No charge light. Seems like battery is dead because the phone turns off during boot and battery not charging.
Nothing seems shorted. Phone been working great for weeks before this. BL unlocked, Debloated stock, TWRP. Any ideas other than sending back for warranty? Luckily I still have my S7 as primary but I had my Axon for primary for my trip for real world daily use. Needles to say, photos and videos are wanted off the phone.
RoninBlackSoul said:
So earlier this week, I was using my phone with Google Maps like usual. I plugged in my vehicle USB port to the phone to save battery. I had +50% on the phone and 1A USB port. So after like 5 minutes of it being plugged in, my phone just turned off. I tried turning it back on and all I get is the boot screen, then AXON shows, and puff... Phone off again. I tried booting into recovery but phone turns off before TWRP finishes loading. Phone doesn't seem to be charging. Tried different cables and charger to charge phone but nothing. No charge light. Seems like battery is dead because the phone turns off during boot and battery not charging.
Nothing seems shorted. Phone been working great for weeks before this. BL unlocked, Debloated stock, TWRP. Any ideas other than sending back for warranty? Luckily I still have my S7 as primary but I had my Axon for primary for my trip for real world daily use. Needles to say, photos and videos are wanted off the phone.
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Click to collapse
Have you tried going to bootloader mode by holding power and volume down
If the battery has died, then the phone wouldn't turn on is my thinking as everyone you then it on it eats some vattwry
You didn't mention specifically, but have you tried using the factory wall charger & cable and leave charge for like an hour?
Steve - O said:
You didn't mention specifically, but have you tried using the factory wall charger & cable and leave charge for like an hour?
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Click to collapse
Original charger but with certified Micro-b/USB-C cable I've been using for weeks between my S7 and the Axon.
So I left the phone alone for the last few days as I was busy at work and Just didn't feel like messing with it when I got home. I tried to turn the phone on but battery was dead. The quick flash of red led was the indicator trying to power it up. So I used my Samsung charger as it was right there and the original ZTE cable. Phone lights up charging and so I left it as is to go to work. I get home, the green led is lit, so I'm hoping my phone will power up now. Nope, right back to my original issue. Power on phone, gets to Axon logo then eventually turns off or goes black screen. I tried booting into recovery but turns off before fully loading. I try to charge phone again but no led indicator.
So later today, I'm going to try to boot into fastboot and try the new TWRP recovery. Maybe it was enabling r/w on system that caused this. I had downgraded to unlock bootloader and then installed ZADmix. I've been usuing it nonstop for 2 weeks with no issues. I have xposed installed so I know rebooted a few times to get everything working and it never turned off since then.
Really frustrating as that's the phone that had my pictures on it.
Hi @RoninBlackSoul, so what did you end up do ? Have you found any way to bring back the Axon from the dead or sent it back to ZTE for repair / replacement ? Same thing just happened to me, and for me Axon 7 is my primary phone ... if the phone is really dead ... will neve buy another ZTE phone ever !!!
dr3am_r said:
Hi @RoninBlackSoul, so what did you end up do ? Have you found any way to bring back the Axon from the dead or sent it back to ZTE for repair / replacement ? Same thing just happened to me, and for me Axon 7 is my primary phone ... if the phone is really dead ... will neve buy another ZTE phone ever !!!
Click to expand...
Click to collapse
Honestly not sure what did it. After battery drained, plugged it in to charge for 2 or 3 days. Then remembered some note about enabling write access in TWRP (something like that) would cause bootloops. Which is weird, rebooted the phone a few times when it was working.
Any case, I reflahed the recovery/bootstack in EDL and got my phone back. Been working great 5 months now
Sent from my ZTE A2017U using Tapatalk
@RoninBlackSoul, thanks for the feedback.
Got mine working also, my phone was not charging at all. After suddenly rebooting and battery went dead fast, phone was not able to charge for about two days. After which, suddenly started working again, was able to charge and works normally now. This is weird. From my point of view this could be: 1. some sort of auto-protection perhaps or 2. an actual hardware design issue that manifests at random (for some after few weeks or months after purchase). For the 1 point: I was using a non original cable using the original charger, and the USB type c plug was hot at the time the issue occurred. Perhaps due to that heat some protection mechanism manifested that got reset after phone was completely out of juice. Will use only original cable with the Original Fast Charger from now on, as the usb-c plug of the 3rd party cable was fine with a normal charger (non QC3). Hope issue will not manifest again or, Axon 7 will be my last ZTE device ...
dr3am_r said:
@RoninBlackSoul, thanks for the feedback.
Got mine working also, my phone was not charging at all. After suddenly rebooting and battery went dead fast, phone was not able to charge for about two days. After which, suddenly started working again, was able to charge and works normally now. This is weird. From my point of view this could be: 1. some sort of auto-protection perhaps or 2. an actual hardware design issue that manifests at random (for some after few weeks or months after purchase). For the 1 point: I was using a non original cable using the original charger, and the USB type c plug was hot at the time the issue occurred. Perhaps due to that heat some protection mechanism manifested that got reset after phone was completely out of juice. Will use only original cable with the Original Fast Charger from now on, as the usb-c plug of the 3rd party cable was fine with a normal charger (non QC3). Hope issue will not manifest again or, Axon 7 will be my last ZTE device ...
Click to expand...
Click to collapse
I only use good chargers rated for QC or 2/2.4 amps like samsung, anker, aukey. Haven't had issues since. Plus certified type-c cables at all times
Sent from my ZTE A2017U using Tapatalk

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