Zuk Z2 automatically reboot when disconnected from charger. - Lenovo ZUK Z2 (Plus) Questions & Answers

Hi, I'm new in this forum. I've bought a Zuk Z2 last year and it worked fine 'till yesterday. The phone automatically shutted down and I had to re-flash the stock Lenovo firmware. Now the phone still work but only if connected to the charger. If I disconnect the charger the phone starts to automatically reboot. I can get it working again only reconnecting the charger. Please help me!

1) Make sure you installed the correct firmware
2) try factory reset
3) try custom ROM
4) make sure it is not a hardware related problem

GL96 said:
Hi, I'm new in this forum. I've bought a Zuk Z2 last year and it worked fine 'till yesterday. The phone automatically shutted down and I had to re-flash the stock Lenovo firmware. Now the phone still work but only if connected to the charger. If I disconnect the charger the phone starts to automatically reboot. I can get it working again only reconnecting the charger. Please help me!
Click to expand...
Click to collapse
Change your battery ?

visheshjain25 said:
Change your battery
Click to expand...
Click to collapse
Probably I'll change the battery, but first I'm trying to understand if we're talking about a software or hardware issue. Other hints?

selvarajrajkanna said:
1) Make sure you installed the correct firmware
2) try factory reset
3) try custom ROM
4) make sure it is not a hardware related problem
Click to expand...
Click to collapse
I'm waiting for a stable rom, something with good support and updates. The one I'd prefer would be an official LineageOs, I seriously loved Cyanogen on my old galaxy S4.

GL96 said:
I'm waiting for a stable rom, something with good support and updates. The one I'd prefer would be an official LineageOs, I seriously loved Cyanogen on my old galaxy S4.
Click to expand...
Click to collapse
There are many stable custom Rom's for Z2_plus
i recommend
1) viper OS 3.1 final
2) Citrus CAF 3.5 by miju
These both are stable(as far as i know) out of the box and don't flash custom kernel without proper knowledge.

is changing battery solved the problem

GL96 said:
Hi, I'm new in this forum. I've bought a Zuk Z2 last year and it worked fine 'till yesterday. The phone automatically shutted down and I had to re-flash the stock Lenovo firmware. Now the phone still work but only if connected to the charger. If I disconnect the charger the phone starts to automatically reboot. I can get it working again only reconnecting the charger. Please help me!
Click to expand...
Click to collapse
Did you find any solution?

Related

[Q] Note 2 Freezes while Charging Phone when Screen Off

Hi,
I bought my Note 2 about 2 weeks ago and kept it to OTA Updates, until recently updated via ODIN and CWM to a few different Original Custom FWs (PA3, RootBox, Carbon, ETC)
Thing is, i like charging my phone overnight, and it just freezes right when i plug it into the charger if the phone is turned off, even if it's on the power block that came with the phone box or via any usb port in my computer.
I've read that it's the kernel, but i've tried many kernels (perseus, limaro, neak, etc) and it always freezes. Also tried different base (official stock roms from sammobile, but i confess i haven't tried charging with stock because i always root it, and cwm it and custom rom it right away, i have no plans on coming back to stock)
I know this is no dealbreaker, but i'd like to be able to do it, since i only like to charge the phone once in a day, and it's when i'm sleeping.
Appreciate any help, thanks in advance.
Bump!
Factory reset.
this is XXXDDDAAA
Try to Charge with any other power adopter. QUOTE=Sojiryu;39628968]Hi,
I bought my Note 2 about 2 weeks ago and kept it to OTA Updates, until recently updated via ODIN and CWM to a few different Original Custom FWs (PA3, RootBox, Carbon, ETC)
Thing is, i like charging my phone overnight, and it just freezes right when i plug it into the charger if the phone is turned off, even if it's on the power block that came with the phone box or via any usb port in my computer.
I've read that it's the kernel, but i've tried many kernels (perseus, limaro, neak, etc) and it always freezes. Also tried different base (official stock roms from sammobile, but i confess i haven't tried charging with stock because i always root it, and cwm it and custom rom it right away, i have no plans on coming back to stock)
I know this is no dealbreaker, but i'd like to be able to do it, since i only like to charge the phone once in a day, and it's when i'm sleeping.
Appreciate any help, thanks in advance.[/QUOTE]
UtkarshGupta said:
Factory reset.
this is XXXDDDAAA
Click to expand...
Click to collapse
I did, CWM Fatory Data/Cache Wipe and didn't work, not sure if it's the same from the rom factory reset option, willing to try (and reinstall everything from scratch) if you or anyone confirms this.
Thanks.
jdomadia said:
Try to Charge with any other power adopter.
Click to expand...
Click to collapse
I did, Doesn't work with the original, or with any other, or USB to PC, just freezes, however it works on stock rom, just not any custom rom.
Thanks.
Try a super wipe and flash back stock rom. We need to cross out custom roms.
Sent from my GT-N7100 using xda premium
UtkarshGupta said:
Try a super wipe and flash back stock rom. We need to cross out custom roms.
Sent from my GT-N7100 using xda premium
Click to expand...
Click to collapse
It charges while off on Stock ROM just fine, Just not on ANY CUSTOM 4.1.2/4.2.2 AOSP/AOKP, went to stock and came back to, say Carbon, or Rootbox with no luck, Still unable to charge while off,
Try not to undervolt it...when you try to undervolt too much there will be freezes when you lock the screen.. i had the same problem..
Thats my advice..
Make full wipe and install a custom rom..at the very first boot..try to access to stweak...grant it root pernission...and overvolt every cpu frequency step by+50mV.
Give it a try...i hope i helped you...ifbyes ..plz hit the thanks button..
If you have further question...feel free to pm me..or start a new thread.
Sent from my GT-N7100 using xda premium
It just started happening to me a few days ago on Jedi Master ROM... was working fine for about a month... if the screen stays off for a while or if it's charging for awhile it locks up... have to pull the battery
Have the same problem on slimbean 4.2.2 rom
Wysłane z mojego GT-N7100 za pomocą Tapatalk 4
Similar problem here, whenever screen is off for more than 8 seconds it will not wake up... Any ideas? I am trying stock roms and others, no solution so far...
Same problem with my GT-N7100.
I've tried both CWM & TWRP. It happens after flashing stock ROM to any of 4.3 AOSP based (CM10.2, ReVolt, Carbon, AOKP). When I'm trying to charge in power-off state, empty battery with white circle on center appears and freezes. Device doesn't charge and the only way to boot something (recovery/bootloader/system) is to reinsert the battery.
Changing build-in kernel to N.E.A.K. didn't help either.
I'm out of options. Please help :crying:
Happened here exactly after downgrading from 4.3 custom back to stock Samsung ROM. Of course lost IMEI but I managed to fix it and after applying ARIZA patch all worked well, however I flashed another stock, bit never and freezing started... Out of options so far as well. I will keep trying.
EDIT: Tried suggested in another thread RECOVERY software, however ODIN fails on sboot.bin every time...
My guess - trouble is in AOSP kernel. For example, if you install any AOSP based ROM and then install N.E.A.K. v2.2x SAMSUNG FW kernel (for TouchWiz) - problem goes away. You can't start ROM after that, but that's not the point.
I think we should post our issue in some kernel development discussion, like N.E.A.K. and hope they find solution.
btw 4.2 and 4.3 ROMs both has that issue.
mellax said:
My guess - trouble is in AOSP kernel. For example, if you install any AOSP based ROM and then install N.E.A.K. v2.2x SAMSUNG FW kernel (for TouchWiz) - problem goes away. You can't start ROM after that, but that's not the point.
I think we should post our issue in some kernel development discussion, like N.E.A.K. and hope they find solution.
btw 4.2 and 4.3 ROMs both has that issue.
Click to expand...
Click to collapse
---------------------------------------------------------
Just installed Omnirom 4.4.2 on my Note 10.1 (2012) and am having the same issue. As soon as I dock it / charge it when locked, can't unlock and it appears to crash. I did not have this issue with stock.
Any further progress?
Thanks in advance.
Anybody ever found a solution for this? My note 2, N7100 hangs if charged when switched off.
Only when switched off, I shows the battery with the white circle and that's it.
AOSB KK 1.3.6, 4.4.4, krn 3.0.64-CM, latest modem, TWRP etc.
Brammieman said:
Anybody ever found a solution for this? My note 2, N7100 hangs if charged when switched off.
Only when switched off, I shows the battery with the white circle and that's it.
AOSB KK 1.3.6, 4.4.4, krn 3.0.64-CM, latest modem, TWRP etc.
Click to expand...
Click to collapse
Try Resurrection Remix 4.4.2 KitKat v5.1.5 They fixed it somehow.
plz help
I have note 2 its all fine
but when i turn the screen off for a while the phone freeze and not turning on unless i unplug and replug the battery
this thing happens even in the charger i tried replacing the battery but the same thing
any ideas

[Q] Charging Problem

I am not able to charge my phone properly as when i plugin my phone to charger it does not charge then i have to reboot my phone 1-2 times to make it start charging.i have tried 3 chargers and all are working properly and the usb port is also not faulty as i can connect to my otg cable.
i am using latest official cyanogenmod 11 buld. i also tried paranoid android rom and was getting the same problem.
i had this problem back with samsung i9070 then i flashed an official rom and it's gone try going official and root later​
Had this problem with my N-7100 twice, in the first time flashing an official ROM solved the issue, months later faced the same problem, but there was no software solution, had to give it back to Samsung's Service Center and got it fixed.
Pique91 said:
i had this problem back with samsung i9070 then i flashed an official rom and it's gone try going official and root later​
Click to expand...
Click to collapse
That's the best solution I would recommend if it didn't work, then it's more likely to be a hardware issue

Weird Power Issue with all custom RoMs

So I took out my age old xperia M(single sim) a couple of days ago and installed cm 12.1 on it. The only issue I'm facing with it is that if I keep the phone on standby for a while the phone completely and silently shuts itself off. When this happens it doesn't turn on with the power key as well so the only way to turn it on after this happens is by removing and re inserting the battery and then pressing the power button. (phone boots normally then)
This problem only appears when the phone is in standby. I could use it 2hrs straight and the phone would keep functioning normally as long as I don't keep it on standby for a long period.
I've tried tons of different cm12.1 roms and factory reset the phone multiple times but the problem is there with every single rom. Haven't tried any rom that isn't based on 12.1 yet.
Strange thing is that this standby dead thing doesn't happen when there is a music app that's playing some song while in standby. Even if the phone is on silent and media volume is 0. So the temporary fix is to keep playing some song and keep media volume at 0. I would be really happy if someone comes up with a permanent solution though. Thanks. Any help would be greatly appreciated
Was the problem present on the stock ROM?
elmkzgirxp said:
Was the problem present on the stock ROM?
Click to expand...
Click to collapse
I have the same problem with CM based roms, went back to stock and it doesn't have this issue, could it be something to do with ambient display/doze?
kurtbvb said:
I have the same problem with CM based roms, went back to stock and it doesn't have this issue, could it be something to do with ambient display/doze?
Click to expand...
Click to collapse
No, I don't think so. Which version did you come from? I would suggest flashing 15.4.A.1.9 first because most custom ROMs use it as base and doesn't offer full compatibility with older versions.
elmkzgirxp said:
Was the problem present on the stock ROM?
Click to expand...
Click to collapse
Nope. My sister had been using this phone on 4.3 since 1yr now. I decided to use it as a secondary media device when she got a new phone. When I first unlocked my bootloader after rooting the device went into bootloop. So had to restore it to stock 4.1 Indian (couldnt find 4.3 indian ftf) using flashtool (took 2 days and tons of researching to get the drivers working). Then I rooted it again and flashed twrp and cm 12.1. Have been facing this problem ever since.
It's driving me crazy now. Might go back to stock if it doesn't get fixed
Edit - also just checked the sim slot isn't working either. Tried multiple 12.1roms but it won't get detected. Didn't realise this before as I'm using this as a media device and don't need sim card working anyway.
RagzyB said:
Nope. My sister had been using this phone on 4.3 since 1yr now. I decided to use it as a secondary media device when she got a new phone. When I first unlocked my bootloader after rooting the device went into bootloop. So had to restore it to stock 4.1 Indian (couldnt find 4.3 indian ftf) using flashtool (took 2 days and tons of researching to get the drivers working). Then I rooted it again and flashed twrp and cm 12.1. Have been facing this problem ever since.
It's driving me crazy now. Might go back to stock if it doesn't get fixed
Edit - also just checked the sim slot isn't working either. Tried multiple 12.1roms but it won't get detected. Didn't realise this before as I'm using this as a media device and don't need sim card working anyway.
Click to expand...
Click to collapse
Do what I said to @kurtbvb too, as it may just be base incompatibility. Flash everything except the TA partition (if present) and wipe /data and /cache.
elmkzgirxp said:
Do what I said to @kurtbvb too, as it may just be base incompatibility. Flash everything except the TA partition (if present) and wipe /data and /cache.
Click to expand...
Click to collapse
So do I flash stock 4.3 using twrp or do I need to flash the ftf file using flashtool ?
RagzyB said:
So do I flash stock 4.3 using twrp or do I need to flash the ftf file using flashtool ?
Click to expand...
Click to collapse
Flashtool. Some files are required which custom recoveries can't flash.
Just flashed the above mentioned ftf file and then rooted the phone, installed twrp and then cm 12.1 based rom. Everything runs perfect now. No random shut downs and Sim card works as well.
Thanks you so so much

OTA Update failure

Hello everyone
I have a lenovo vibe p1a42
When i bought this phone i was initially able to update without any problem til build no. S147_151288_ROW. But after that when i received notification of new update available, i downloaded it bt I cannot update it. I tried it several time. Every time it jist takes me to recovery mode, starts updating then at 24% it fails. I tried updating manually. I also tried using Lenovo Smart Assistant. But all of them give same result.
I am unable to uodate any furture. Can u tell me what should i do? I hear that this phone has now MM update too, bt i'm stuck.
Also, my phone has stopped vibrating. No vibration on anything. The vibration does works sometimes, bt again stops working in few min. I dont know whether this is software related or h/w prob. I will take it to service center if the problem doesnt solve on updating the os.
niranjand147 said:
Hello everyone
I have a lenovo vibe p1a42
When i bought this phone i was initially able to update without any problem til build no. S147_151288_ROW. But after that when i received notification of new update available, i downloaded it bt I cannot update it. I tried it several time. Every time it jist takes me to recovery mode, starts updating then at 24% it fails. I tried updating manually. I also tried using Lenovo Smart Assistant. But all of them give same result.
I am unable to uodate any furture. Can u tell me what should i do? I hear that this phone has now MM update too, bt i'm stuck.
Also, my phone has stopped vibrating. No vibration on anything. The vibration does works sometimes, bt again stops working in few min. I dont know whether this is software related or h/w prob. I will take it to service center if the problem doesnt solve on updating the os.
Click to expand...
Click to collapse
Hello,
Try upgrading your phone via QPST and not OTA
Good luck
dreigosh said:
Hello,
Try upgrading your phone via QPST and not OTA
Good luck
Click to expand...
Click to collapse
I wanted to try tht but i cannot find a link for s152 version file. I tried contacting lenovo through their official forum, they said bring it to service center. I think i ll just do that only. Since i anyway had to go there for my vibration problem.
BTW Thank you for reply.
Sent from my Lenovo P1a42 using XDA-Developers mobile app
niranjand147 said:
Hello everyone
I have a lenovo vibe p1a42
When i bought this phone i was initially able to update without any problem til build no. S147_151288_ROW. But after that when i received notification of new update available, i downloaded it bt I cannot update it. I tried it several time. Every time it jist takes me to recovery mode, starts updating then at 24% it fails. I tried updating manually. I also tried using Lenovo Smart Assistant. But all of them give same result.
I am unable to uodate any furture. Can u tell me what should i do? I hear that this phone has now MM update too, bt i'm stuck.
Also, my phone has stopped vibrating. No vibration on anything. The vibration does works sometimes, bt again stops working in few min. I dont know whether this is software related or h/w prob. I will take it to service center if the problem doesnt solve on updating the os.
Click to expand...
Click to collapse
I understand your pain.... lenovo OTA updates are very finicky. If you want marshmallow you can straightaway flash that ROM (the latest one is S285).
But please make sure to backup your data since this will definitely wipe all your data (same as factory reset). There is thread in on this forum which gives a fairly easy steps on flashing ROMs folr Vibe P1.
If you want to root your android 6.0 though, thats a different story.
Still have a look here - http://forum.xda-developers.com/vibe-p1/development/qpst-flashing-vibeui-3-1-s272-rom-t3386650
You can flash ROM fairly easily from flashing steps mentioned in above thread. If you feel rooting steps are complex, you can still stay on unrooted rom, at least it will be the latest one.

Question Bluetooth Issues

Does anyone have issues with bluetooth? When I connect to my car it will reboot my phone in around 15-20 mins. I"m on crDorid now but it also happened on Syberia but everything was fine on stock global 12.5.2. I have already flash back to stock Miui and then reinstall crDorid rom, It still having the same issues. I have also turn off location scan for wifi and bluetooth.
Thanks
I have same issue but im in LineageOS, I tested ArrowOS and it was the same.
Swapped to evox and still having the same issue. I might just go back to stock rom.
I'll have to test it too.. I was bored to pair it to be honest but I'll do it to check it.
Not sure if it helps but I'm using another ROM with I think is not allowed on XDA (helluvaOS), and used a bluetooth headphone for 35min today, without problems.
spoonsports said:
Swapped to evox and still having the same issue. I might just go back to stock rom.
Click to expand...
Click to collapse
Spoonspots, I reinstalled Lineage Os and install imersity kernel and now its working fine, i dont know if it was for the clean installation or the kernel.
.
franko_m19 said:
Spoonspots, I reinstalled Lineage Os and install imersity kernel and now its working fine, i dont know if it was for the clean installation or the kernel.
Click to expand...
Click to collapse
Thanks for letting me know. I had to go back to stock because my phone was rebooting every 5 mins at some locations. But after I saw shadowam said that the banned OS was working so I gave that a try and its been good so far. Only 1 random reboot after using android auto the whole day.

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