OPO auto start when charger is connected fail - ONE Q&A, Help & Troubleshooting

Hello, All,
It's time for my OPO to help me in other ways except as a phone.
I have removed the battery and its now only running on a charger BUT it doesn't turn on when a charger I plugged in. This is a function I require for the projects. I have tried the "fastboot oem off-mode-charge 0" method (worked for other devices) but the command just hangs and doesn't go through. Is there any other way to achieve this?
Thank you

skokoble6ter said:
Hello, All,
It's time for my OPO to help me in other ways except as a phone.
I have removed the battery and its now only running on a charger BUT it doesn't turn on when a charger I plugged in. This is a function I require for the projects. I have tried the "fastboot oem off-mode-charge 0" method (worked for other devices) but the command just hangs and doesn't go through. Is there any other way to achieve this?
Thank you
Click to expand...
Click to collapse
i searched around where i could but i doubt it. Personally if it hangs for you i would reflash the opo to it's out of the box state (so you get a fresh bootloader) and try again. Maybe try it with another pc/laptop? does the command hang with or without the battery? Or perhaps a flashable .zip exists somewhere so the setting gets applied though TWRP but i'm not sure (i'm just speculating)

Related

[Q] Sensation won't boot up or charge

I've seen a couple of threads about this but none of them have the same issues as I have or they remain unanswered.
My HTC Sensation (EU version) won't boot up at all. I can't boot it into recovery or bootloader and when charging the light doesn't turn on.
It recently started to randomly reboot and at one point it completely corrupted all files on my SD card. However, it worked ok after I bought a new SD card and the random reboots didn't bother me that much. Today when I woke up however, I saw that it wouldn't respond to me pressing the power button. I also noticed that the charging light wasn't on (it was plugged into the wall overnight).
I tried removing/reinserting the battery, I tried booting into recovery and bootloader, I tried connecting it to my PC and forcing it to boot into bootloader but nothing works. To clear things up, when I try to boot it up nothing happens. The screen stays black and doesn't power on.
The only thing that leads me to believe there's still a chance of it working is that when I plug it into the PC, my PC detects it (although it's unable to install the required drivers for it).
I'd appreciate any help I can get.
intestro said:
I've seen a couple of threads about this but none of them have the same issues as I have or they remain unanswered.
My HTC Sensation (EU version) won't boot up at all. I can't boot it into recovery or bootloader and when charging the light doesn't turn on.
It recently started to randomly reboot and at one point it completely corrupted all files on my SD card. However, it worked ok after I bought a new SD card and the random reboots didn't bother me that much. Today when I woke up however, I saw that it wouldn't respond to me pressing the power button. I also noticed that the charging light wasn't on (it was plugged into the wall overnight).
I tried removing/reinserting the battery, I tried booting into recovery and bootloader, I tried connecting it to my PC and forcing it to boot into bootloader but nothing works. To clear things up, when I try to boot it up nothing happens. The screen stays black and doesn't power on.
The only thing that leads me to believe there's still a chance of it working is that when I plug it into the PC, my PC detects it (although it's unable to install the required drivers for it).
I'd appreciate any help I can get.
Click to expand...
Click to collapse
open a cmd window in your adb and fastboot folder and try this command
adb boot bootloader
rzr86 said:
open a cmd window in your adb and fastboot folder and try this command
adb boot bootloader
Click to expand...
Click to collapse
That command didn't work for me and displayed a wall of text. After looking through it I found a similar command which I tried
adb reboot-bootloader
When I entered that it said that it was starting the daemon on port, that the daemon had started succesfully and then it gives me the error: device not found.
intestro said:
That command didn't work for me and displayed a wall of text. After looking through it I found a similar command which I tried
adb reboot-bootloader
When I entered that it said that it was starting the daemon on port, that the daemon had started succesfully and then it gives me the error: device not found.
Click to expand...
Click to collapse
opps i mean reboot
i don't know why i forgot that
previously you said that it detects it
how it detects it?
When I connect the phone to my PC I hear the sound that windows makes when you connect a USB device.
intestro said:
When I connect the phone to my PC I hear the sound that windows makes when you connect a USB device.
Click to expand...
Click to collapse
charge the device without battery,sim and sdcard for 4-5 hours
put them back and switch it on
see how it goes
if that fails then try to switch on the device with a different battery
rzr86 said:
charge the device without battery,sim and sdcard for 4-5 hours
put them back and switch it on
see how it goes
if that fails then try to switch on the device with a different battery
Click to expand...
Click to collapse
I tried the charging method but it didn't seem to do anything.
I don't have a different battery that fits in there. Can I use a smaller and lower capacity battery as well and just connect the contacts? I don't wanna shortcut anything
intestro said:
I tried the charging method but it didn't seem to do anything.
I don't have a different battery that fits in there. Can I use a smaller and lower capacity battery as well and just connect the contacts? I don't wanna shortcut anything
Click to expand...
Click to collapse
No. Don't even try connecting other battery.
Sent from my HTC Sensation Z710e
MrJukeHardbane said:
No. Don't even try connecting other battery.
Click to expand...
Click to collapse
So are there any options left for me? I've read some stuff about Jtagging but I'm not planning on getting a box or paying someone to do it for me.

[Q] How To Set device to Turn-on Device automatically when Charge Is Enough

My HTC One S (T- mobile) is rooted (with MoDaCo method), S-off (using Rumrunner) and SuperCID. I have TWRP recovery and CynogenMod11 installed with google apps.
Whenever the phone turns off due to very low battery it does not turns on automatically when I recharge the battery. I always have to manually turn it on by pressing power button. If I remember correctly it used to turn on when I did not do any modifications. Either, while trying to root, install custom recovery or CM11 I broke something or it is a issue with CM11. I read a thread which said this is not controlled by ROM (CM11) but by bootloader. I also want to mention that while charging the phone's screen does not show anything. Only the LED remains amber colored while charing and finally turns green when charge is complete. I don't remember how it looked earlier with Stock ROM.
What I want: The phone should automatically turn itself ON when the battery is sufficiently charged (let's say >10%). Does anyone had a same issue or knows how to fix it? Do you think I broke something while trying different methods to S-off and root etc.. I have the old TWRP back which I can try to flash. I found the fastboot command for nexus 7 which can accomplish this (fastboot oem off-mode-charge 0).
Thanks

[Q] [SOLVED] Off-brand tablet bricked after "adb reboot bootloader"

Hi,
I have an iRulu (some off-brand Chinese tablet that is also somewhat branded as Allwinner) 9.7" tablet. I was going install a recovery and try to learn how to compile a ROM for it but things went wrong at step one. I hooked it up to my computer (running Arch linux) and got ADB to recognize the device. I typed "adb reboot bootloader" to get into fastboot and see if the bootloader was unlocked, but when it rebooted it just got stuck on the logo screen and was not responsive to fastboot and adb no longer recognized its presence. I haven't been able to find any other examples online of that command bricking a device. As far as I can tell, none of the normal button combinations work to get to recovery or anything like that. It's not really a bootloop because it doesn't restart and try to boot again. It's just frozen and I can't find my way in. I found a forum that said to disconnect the battery for 30 seconds but it's soldered in (I'm comfortable desoldering and resoldering but I'd prefer another solution). Any ideas on how to recover the situation? Thanks in advance!
830hobbes said:
Hi,
I have an iRulu (some off-brand Chinese tablet that is also somewhat branded as Allwinner) 9.7" tablet. I was going install a recovery and try to learn how to compile a ROM for it but things went wrong at step one. I hooked it up to my computer (running Arch linux) and got ADB to recognize the device. I typed "adb reboot bootloader" to get into fastboot and see if the bootloader was unlocked, but when it rebooted it just got stuck on the logo screen and was not responsive to fastboot and adb no longer recognized its presence. I haven't been able to find any other examples online of that command bricking a device. As far as I can tell, none of the normal button combinations work to get to recovery or anything like that. It's not really a bootloop because it doesn't restart and try to boot again. It's just frozen and I can't find my way in. I found a forum that said to disconnect the battery for 30 seconds but it's soldered in (I'm comfortable desoldering and resoldering but I'd prefer another solution). Any ideas on how to recover the situation? Thanks in advance!
Click to expand...
Click to collapse
When you open the back cover, do you see the board number? You can try searching for firmware using the number, and flashing it. Mine was stuck in bootloop for months before i figured it out(i own a ubislate 7c+ edge, a11 firmware worked for me).
Sent from my GT-I9082 using XDA Free mobile app
NoobInToto said:
When you open the back cover, do you see the board number? You can try searching for firmware using the number, and flashing it. Mine was stuck in bootloop for months before i figured it out(i own a ubislate 7c+ edge, a11 firmware worked for me).
Sent from my GT-I9082 using XDA Free mobile app
Click to expand...
Click to collapse
Thanks that's a great idea. Might not solve the problem to know the firmware, but more information is always helpful.
OK, I solved this. Here's what I did:
- Let the tablet die. All the way. After I left it on that stupid boot screen it was stuck on until it died, I left it another week just sitting there.
- Plug in the power connector and the micro usb connector.
- Turn it on once it gets charged enough that it's willing to start.
- Move the USB connector to the USB-to-go (HOST) spot while still connected to your computer. This crashes the device from some kind of voltage protection mechanism.
I'm not sure exactly what happened but after that the device started just fine. I think the voltage protection mechanism might have kicked it out of "boot to bootloader" mode, where I think it was frozen, and into actual boot mode. I wouldn't necessarily recommend this solution since I put the actual hardware of my computer and the tablet at risk, but I figured my laptop was old and my tablet was bricked so there wouldn't be any huge loss.
Anyway, I'm marking this as solved. If anyone has this happen to them and my solution actually works for you, let me know. I'd get a huge kick out of hearing someone else follow my stupidity. Good to have my tablet back!
Sisonke= We are on the same path in my language
i am currently having the same situation RIGHT NOW. Loved messing with ADB and its ....functions... also typed adb reboot-bootloader and guess what i got.. Stuck at the boot face. lol:laugh: but im gonna take our advice, if you say draining the power is the key...well i find no harm in cutting the main battery source for a while and then reconnecting it again. If this procedure doesn't work...I'll have to do it your way. Crossing fingers ..hope it works. email me wen u get this. [email protected]:angel:

Restarts from fastboot when connected to USB

Hi, I hope someone can help, because this looks like a strange one. I was not able to find something similar to it.
I attempted to unlock the boot loader and install TWRP. This worked fine. But I noticed that the fastboot icon changed from being a gray CM face to a white one. That was done using using the Toolbox v6.
I later noticed that some android apps are listed as not compatible with the device. So I thought I'll reverse the process. So I plug it in, and clicked lock boat loader, did a restart; wanting to to flash the stock-recovery. My goal was to reset it back to normal.
The issue I have now is that whenever I try to fastboot, it boots into the white CM face, and the second I connected to the computer via USB, it restart. If I try to hold power+volume up again, it just goes black and does not restart. When I unplug the USB, it restarts again.
How can I get it to reboot into fastboot and remain in fastboot after being connected to USB?
Any ideas? The tools listed in this thread:
http://forum.xda-developers.com/oneplus-one/general/index-oneplus-one-resources-compilation-t2843675
require that I fastboot, then connect to the computer. but my very issue is that when it connects to USB it just restarts.
Any ideas?
Thanks,
Maher
melkhaldi said:
Hi, I hope someone can help, because this looks like a strange one. I was not able to find something similar to it.
I attempted to unlock the boot loader and install TWRP. This worked fine. But I noticed that the fastboot icon changed from being a gray CM face to a white one. That was done using using the Toolbox v6.
I later noticed that some android apps are listed as not compatible with the device. So I thought I'll reverse the process. So I plug it in, and clicked lock boat loader, did a restart; wanting to to flash the stock-recovery. My goal was to reset it back to normal.
The issue I have now is that whenever I try to fastboot, it boots into the white CM face, and the second I connected to the computer via USB, it restart. If I try to hold power+volume up again, it just goes black and does not restart. When I unplug the USB, it restarts again.
How can I get it to reboot into fastboot and remain in fastboot after being connected to USB?
Any ideas? The tools listed in this thread:
http://forum.xda-developers.com/oneplus-one/general/index-oneplus-one-resources-compilation-t2843675
require that I fastboot, then connect to the computer. but my very issue is that when it connects to USB it just restarts.
Any ideas?
Thanks,
Maher
Click to expand...
Click to collapse
It seems to work fine now... I honestly kept tinkering around, it seems to work now. I wish I could offer a better answer. But I am not sure I am able to remember what I did exactly... it was a bunch of plugging and unplugging, restarts, and lots of prayers.
I had a same problem and similar solution
I believe i had found the solution when I change the USB port from my notebook where I had plug my the USB cable from my smartphone.
Same issue here.. I think it is because of USB 3.0. My laptop don't have USB 2.0 hence fastboot or adb wont detect my device, I was using a USB extender which works as USB hub (2.0) it worked many times before now again facing same reboot on usb connection issue.

Nvidia shield boot on charge carputer

Hello guys, I have looked for days and days for a solution... Could only find a solution if the tablet was a Nexus 7 or a Samsung device. I looked into the system files for anything remotely similar but unfortunately could not.
So do the great minds that are here able to help me ? So that the tablet will boot on a power input? Booting down is achieved by using an app so all I need is to boot the tablet. The tablet is a 2014 shield, rooted with cwm on 5.1.1
I am not a developer so will need a little hand holding but can usually achieve things, I would of thought somebody would have tryed this before considering the price of the tablet...
Can this be achieved by modifying a system file or does it have to be done on the bootloader ? If so can you please help.
I use the tablet mainly for in car diagnostics, and also media so want it to auto boot on power. All wiring is done just need a final little help. Regards BT
I doubt you will get your tablet to boot on charge, as it would require modifying the bootloader (wich is, AFAIK, not open-source).
But you can try some alternative, for example, don't shut it down, just let it sleep instead of powering it off. With the right settings you can get almost 0% discharge (Wifi off when screen off, turn bluetooth off, disable syncing, airplane mode, ...)
By default, the tablet screen turn on when on charge.
Cheers I will give that a try, I will see if I can get it working as you described above, what would you advise using tasker?
To anybody else;
I have tried running the : fastboot oem off-mode-charge 0 command through Minimal ADB. But unfortunately it comes back saying;
(bootloader) Unknown Command!
OKAY [ 0.029s]
finished. total time: 0.033s
When I test some other commands such as 'fastboot devices' it comes back with the correct serial so I am communicating with the device, and when I do 'fastboot oem unlock' It comes back saying unlocked too. But running 'fastboot oem device-info' again returns an unknown command... So is this a problem with what I am doing or the shield tablet not being compatible?

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