Develop Bugs

[Q] Stock HTC One M8 Won't Boot

Would love some help, please. I have a completely stock HTC One M8 for Sprint. Last night I plugged in the phone to the AC charger (still had ~70% charge) and went to sleep. This morning the charge indicator was green as usual, but pressing the power button did nothing. Unplugged the phone from the charger and the LED remained green.
Tried press-hold power button for 10 seconds: no effect.
Tried press-hold power button and volume down. Select HBOOT, then RECOVERY. The phone vibrates and shows me the skateboarding androids, then reverts to the FASTBOOT menu.
Tried press-hold power button and volume down. Select HBOOT, then FACTORY RESET. The phone vibrates and shows me the skateboarding androids, then reverts to the FASTBOOT menu.
Tried requesting an Unlock_code.bin from HTCDev, then use fastboot to flash that. I see the transfer bar on my phone for an instant, but otherwise the display does not change. Still indicates *** LOCKED *** even though the fastboot command returned "OKAY".
Tried using abd.exe to list devices - none listed. Though fastboot.exe does return my serial number.
:fingers-crossed: Tried pres-hold power+volUP+volDWN for 2 minutes. Phone booted as normal, I swiped my unlock on the touchscreen, HTC Sync saw my phone, then the screen went black and I couldn't get it to boot. Sorry I did not notice what charge level the battery was in the GUI for the ~10 seconds the phone was on.
S-On
HBOOT-3.16.0.0000
RADIO-INVALID_VER_INFO
OpenDWP-INVALID_VER_INFO
OS-1.54.651.8

update - still won't boot, but ...
Update: still won't boot, but now I can get recover mode to run. Tried wiping cache partition and rebooting. Now it boots to the HTC (android) logo, then the Sprint animation plays, then the HTC One animation plays, though the audio portion only plays for the 1st second and cuts off suddenly. Then it just hangs there forever. I left it for an hour at that point just to make sure it wasn't booting really slowly.
Any way to boot from something on an SD card so that I can at least get my userdata partition backed up?

astaples said:
Update: still won't boot, but now I can get recover mode to run. Tried wiping cache partition and rebooting. Now it boots to the HTC (android) logo, then the Sprint animation plays, then the HTC One animation plays, though the audio portion only plays for the 1st second and cuts off suddenly. Then it just hangs there forever. I left it for an hour at that point just to make sure it wasn't booting really slowly.
Any way to boot from something on an SD card so that I can at least get my userdata partition backed up?
Click to expand...
Click to collapse
Sorry to say this, but all your data is gone since you factory reset from bootloader, that always wipe your phone. What recovery you had when you pressed it, if it was custom like trwp your internal sd is more likely corrupted. The easier option to get the phone back to working state is to run ruu if there is any for Sprint.

tominozh said:
...all your data is gone since you factory reset from bootloader, that always wipe your phone. What recovery you had when you pressed it, if it was custom like trwp your internal sd is more likely corrupted.
Click to expand...
Click to collapse
Thanks for the reply. Actually I listed my attempted fixes in order... i.e. I was able to get the phone to boot once for a few seconds - long enough to see my personal home screen and photos - after I had clicked on that factory reset option.
I have a theory. The RAM is bad. That would explain why sometimes it will partly boot and then get stuck, other times it will get stuck in a bootloop to the fastboot menu, and other times (only one time so far) it will completely boot. Also, if I go to the RAMDUMP option, at the bottom of that screen it shows mostly non-ASCII characters and vibrates every ~5 seconds. If I go to IMAGE CRC, it sometimes instantly shows 0x0 next to each device, other times takes a while to calculate believable values for each, and other times won't display anything and freezes.
Think that's plausible? Suppose there is any way to boot from sdcard and retrieve my userdata partition? I did not have a sdcard in when this originally happened, so all my family photos are in userdata and I haven't backed up since my 4-year old's birthday party last weekend.

Any way to get my userdata off this phone, or do an in place upgrade without hosing m
Anyone? Help?

OPPO Keyboard has stopped working, leading me to stuck on a fastboot loop.

Please help. This is a serious matter for me.
Started having this problem at February 14th, 02.10 AM.
Have been looking for the answers in the Oppo Forums too but still got no answers.
Okay, I have a habit, which is moving all of my applications from my internal storage to my external SD card, after I let those applications doing their functions and programs and features and so on for a while. It's not a big deal for me to set up my phone again after I restarted it, and usually it works perfectly. Just restart and I would get to operate my phone again. However, this time, I got a bad luck. The worst one, considering the fact that I'm all-around-gadget.
Here's the results I got from reading a lot of threads (not only from this forum and OPPO forums):
OPPO Swype Keyboard has stopped working? Really?
After restarting my un-rooted Find 7 (9076), I cannot type the password on my lock screen. Like any other Android devices, it would always come back to it's system or default applications, I knew that fact. But this time, when I touched the blank space to type my password, nothing came out. No OPPO Keyboard, which happened to be OPPO's default keyboard. No other keyboards. None at all.
So, I cannot do one single thing to my phone except just turn it on and stared at it like a complete idiot.
Then I decided to turn my phone off and turn it on again after a while.
But still, the same thing happened. No keyboards.
That time, I decided to turn off my phone again and pulled out the battery and my external SD card.
After putting the battery back (External SD Card was still outside), and turned it on again, the same thing still happened.
Sliding my fingers up and down, nothing happened. The touchscreen was still there, showing me my date and time even though I was sliding my fingertips up and down.
Not too long after, I felt my phone got warmer and warmer. I tried double-clicking the home button, which I already set to unlock the lock screen, was also useless. The screen was still black and locked. When it got over-heating, automatically I pulled out the battery without even turning off the phone.
That one was my fault. I knew, and well, honestly speaking, this is the first time I'm in this kind of situation. In the past, my Find 7 would just suddenly restarted itself then everything went back to normal, but not this time.
And here's the beginning of my Fastboot Loop.
Fastboot Loop on un-rooted device
After pressing the Power button and the Volume Up button at the same time, it would bring you to the Recovery Mode. When I did that to my Find 7, it brought me to a black backgrounded screen with cute OPPO mascot and some Hanzi (Chinese handwritings). Picture attached.
I tried to wait for 2-3 hours and found nothing happened.
Pulling the batter out and putting the batter back would do the same.
In other words, I am not able to gain access to my Recovery Mode.
Why didn't bring the phone to the service centre?
I thought about this already.
When I tried to connect my phone to my pc, it can detect the phone but cannot access the files because the phone was still locked with the password.
Usually, the service centre requires us to unlock the phone if there's a problem with it, right? In my cases, yes.
I was searching all night to find out the answers.
I found some threads about the Fastboot Loop thing and etc, but they are only for rooted devices.
I'm using:
OPPO Find 7 (9076)
Color OS 2.0.5i Beta
Android KitKat 4.4.2
Device is not rooted, still original.
Still dealing with the same problem until now (the time I post this thread).
Anyone has solved this problem and guide me step by step to finish this?

daiichi said:
Please help. This is a serious matter for me.
Started having this problem at February 14th, 02.10 AM.
Have been looking for the answers in the Oppo Forums too but still got no answers.
Okay, I have a habit, which is moving all of my applications from my internal storage to my external SD card, after I let those applications doing their functions and programs and features and so on for a while. It's not a big deal for me to set up my phone again after I restarted it, and usually it works perfectly. Just restart and I would get to operate my phone again. However, this time, I got a bad luck. The worst one, considering the fact that I'm all-around-gadget.
Here's the results I got from reading a lot of threads (not only from this forum and OPPO forums):
OPPO Swype Keyboard has stopped working? Really?
After restarting my un-rooted Find 7 (9076), I cannot type the password on my lock screen. Like any other Android devices, it would always come back to it's system or default applications, I knew that fact. But this time, when I touched the blank space to type my password, nothing came out. No OPPO Keyboard, which happened to be OPPO's default keyboard. No other keyboards. None at all.
So, I cannot do one single thing to my phone except just turn it on and stared at it like a complete idiot.
Then I decided to turn my phone off and turn it on again after a while.
But still, the same thing happened. No keyboards.
That time, I decided to turn off my phone again and pulled out the battery and my external SD card.
After putting the battery back (External SD Card was still outside), and turned it on again, the same thing still happened.
Sliding my fingers up and down, nothing happened. The touchscreen was still there, showing me my date and time even though I was sliding my fingertips up and down.
Not too long after, I felt my phone got warmer and warmer. I tried double-clicking the home button, which I already set to unlock the lock screen, was also useless. The screen was still black and locked. When it got over-heating, automatically I pulled out the battery without even turning off the phone.
That one was my fault. I knew, and well, honestly speaking, this is the first time I'm in this kind of situation. In the past, my Find 7 would just suddenly restarted itself then everything went back to normal, but not this time.
And here's the beginning of my Fastboot Loop.
Fastboot Loop on un-rooted device
After pressing the Power button and the Volume Up button at the same time, it would bring you to the Recovery Mode. When I did that to my Find 7, it brought me to a black backgrounded screen with cute OPPO mascot and some Hanzi (Chinese handwritings). Picture attached.
I tried to wait for 2-3 hours and found nothing happened.
Pulling the batter out and putting the batter back would do the same.
In other words, I am not able to gain access to my Recovery Mode.
Why didn't bring the phone to the service centre?
I thought about this already.
When I tried to connect my phone to my pc, it can detect the phone but cannot access the files because the phone was still locked with the password.
Usually, the service centre requires us to unlock the phone if there's a problem with it, right? In my cases, yes.
I was searching all night to find out the answers.
I found some threads about the Fastboot Loop thing and etc, but they are only for rooted devices.
I'm using:
OPPO Find 7 (9076)
Color OS 2.0.5i Beta
Android KitKat 4.4.2
Device is not rooted, still original.
Still dealing with the same problem until now (the time I post this thread).
Anyone has solved this problem and guide me step by step to finish this?
Click to expand...
Click to collapse
boot into recovery and format the phone, this should fix it. If you want to backup your data, just boot into fastboot, connect phone to pc, run fastboot command from sdk tool, push custom recovery, flash twrp, make nandroid backup, fomat phone along with all the storage and then flash oppo stock rom (you need to download) or any other custom rom with gapps. To restore use nandroid manager, do not restore system files if you are flashing custom rom.

treacherous_hawk said:
boot into recovery and format the phone, this should fix it. If you want to backup your data, just boot into fastboot, connect phone to pc, run fastboot command from sdk tool, push custom recovery, flash twrp, make nandroid backup, fomat phone along with all the storage and then flash oppo stock rom (you need to download) or any other custom rom with gapps. To restore use nandroid manager, do not restore system files if you are flashing custom rom.
Click to expand...
Click to collapse
Thank you for your help Sir.
But, my Find 7 already operated normally again since I left it for a few days uncharged and off.
Then I got into Recovery Mode by pressing Power button and Volume Down button (not Volume Up button) while in the middle of my fast-boot loop.
It worked. I could gain access to ColorOS Recovery Mode.
So, I reset my Find 7, then re-installed my applications and everything again.
Thank you for answering!

Major Problems. Please Help !

I have an Asus ZenFone 2 4/64 w/ a 128 gig card. In the middle of watching a YouTube Video, the screen stopped responding to touch. However it would respond to Google voice commands. I restarted it a couple of times with no luck. I then tried to boot into recovery mode and it gave me the android guy with the open stomach and an error message. I then tried to use Asus PC link and was able to navigate the phone that way. So I decided to do a factory reset. Now I have the android guy with the open stomach with his guts turning around and it says erasing. It has been like that for at least 20 minutes. I know it doesn't take that long to reset the phone and whenever I reboot it, it goes right to that screen. Also, on the initial screen when you boot into the system, it says that my bootloader version is unknown, the HW variant is not listed, and the "signing" and "secure boot" both have question marks next to them. Someone please help ?

when you see dead android guy hold volume up and press power button see of that works.

Problem with booting G4

Hello, I would like to first tell you the story my LG G4 has gone through and then I tell you the error.
So, at first my phone was working absolutely properly. I accidentally deleted some pictures and to do a recovery, I had to root it. And rooting would be useful for later so why not do it?
So I first unlocked the bootloader through the code from the LG site. After unlocking, the phone reset (because it would be just too good to make some memory changes and nothing more.) But allright. Then I was ready to root. I just booted the phone, everything was fine. I unlocked the developer mode and opened ADB. I rebooted to recovery through
Code:
adb reboot recovery
I was expecting to see some menu with buttons (but that would be just too good). However, I saw just android with a red triangle in the middle. Nothing more. No response to buttons, nothing.
So I thought. Allright, let's boot into recovery using hardware buttons (vol down + power) at startup. Unfortunatelly, it seemed like there is no such mode System just normally booted (and that was just after bootloader unlocking. Recovery mode goodbye.).
I tried to send commands to the phone using diagnostic port. Unfortunately, it responded by FAIL to every command.
I reboot to bootloader and booted an image: "boot-em.img" (from here: google: how-to-root-lg-g4-on-android-6-0-marshmallow-20a20b-firmware. I'm a newbie here. thx for understanding.)
After that the console uploaded the image and booted successfully. Then, however, system started to boot up and was endlessly booting (LG boot animation) till the battery was critical.
I was able to access the EMI number through volume-down button and volume-up button pressed simultaneously.
I was also able to access some factory-reset dialog by holding volume-down and pressing power-button several times. I choosed to reset everything and then accepted it with one more 'are you sure dialog'. System rebooted and was stucked in the LG boot animation.
Then I got to download mode, since recovery mode was lost in hell. Through LG-UP I flashed the original KDZ firmware and everything got back to normal, but recovery mode was still inaccessible through the hardware buttons. I got through the process of setting everything up, getting developer, rebooting to bootloader and I booted TWRP.
TWRP loaded and it responded to double-tap on screen to wake it up. I just checked the menus and let the phone sleep.
After several hours I went back to the phone and double-tapped on display. Nothing. Phone was not responding. I pressed the power button and the phone restarted (I think. It either restarted into the system or was not responding to power button.)
So I got to the system and again rebooted to the TWRP (through fast-boot). I tried to back-up one partition to the disk. During the process phone had turned the display off. So I double tapped. Nothing. I removed the SD card and the phone woke, saying that back-up process was not able to complete. Suddenly it stopped responding to double-tap. It woke up through an interrupt. I re-inserted the card, successfully backed-up the partition to the SD-card and I left the phone laying on the bed plugged in the charger. It stayed that way for 4 hours or so, doing nothing. All of a sudden, a yellow screen was there, (and that's a screen of absolute death that was never supposed to come. Little I knew.) saying that an unexpected critical error happened and to do a memory dump, insert a cable, set up some communication (I don't remember what it was, didn't take a picture of it.) and it could send the memory dump to PC or somewhere. I thought to myself. So, the application is not so stable after all. It said that to reboot just press the power button or something.
And now the problem comes:
The first start: Bootloader booted, LG animation went on and finished. The starting up apps dialog came rolling. Then, system restarted.
The restart: Bootloader booted, LG animation went on and freezed. Then, the phone restarted.
Second restart: The same thing as the first one.
Fourth restart up till now: Bootloader tries to boot and restarts before the LG animation.
I got to download mode and it restarted even there. After re-inserting the batterry I can sometimes get to the Firmware Update window and communicate. There I flashed the official firmware again.
No success, as if I didn't even do it. It restarts before the animation.
Can I do anything with the phone? Hopefully I can. No hardware problem occured (except for a situation where the error could fry the wires inside the mighty System On Chip.)
For the software state I cannot even tell but I might say it's cooked just wrong. That's why I came here.
I know I did some pretty stupid steps. But the error was not done by me. It worked fine and after the yellow screen which came by itself, it just (some bad words).
Thanks for replies.
Phone: LG-G4 H815, European market

Solution
So, I was looking around and believe it or not, this problem disconnected the pins on the motherboard's snapdragon 808.
I think this happened: The device, although it was heated many times during its life, it withstood that so far.
However, a longer run of the TWRP had finished it off. Memory got disconnected while running and it threw a yellow-screen.
Pins got disconnected and from then on it was just a standard common LG bootloop issue.
The continuous process of dying (First it partially loaded, then only animation, then nothing) is explained by this fact that the pins were so-so there and a couple of reboots just got it totaled.
Temporary fix:
Pre-heated the memory chip to 250°C using Hot-Air gun. After 18 seconds at this temperature I pressed the memory on top of the snapdragon down to the board while cooling.
Then I added a little metal square on the metal part that is covering the system on chip. This part is over the SOC where before there was just some tape.
This can work for several days in sleep mode or a couple of 'heat-demanding' operations on the phone.
Permanent solution should be to reball the memory chip on the snapdragon. That's my next step.

[UNBRICKED] Data Recovery For Soft-Bricked OnePlus 5T

I'm really anxious and nervous about this so I'll simplify this as much as I can; recently my phone was turned on on top of my desk and randomly restarted. I thought little of it, as it quickly went through the OnePlus logo (it began to take longer the second time I restarted it) and Android splash screen, but then stopped on the circles animation and remained looping there. I have very important data on it that I'd like to recover and WILL NOT factory reset (flash) my phone.
The battery icon and percentage still show up when I plug in the device. I still have access to Recovery Mode, Fastboot, and Sideload through their key shortcuts. I previously had USB Debugging enabled but can't authorize ADB since I can't check the confirmation dialogue box (shows up as "unauthorized" in command prompt). I had very little storage (less than 250mB) for the last few days. I don't have root access, custom recovery, or an unlocked bootloader.
I already tried clearing my cache; if I restart after doing so it only takes a few seconds to pass the OnePlus logo as opposed to the ~20 seconds it previously took. This delay raises every few restarts. I've tried waiting many hours to see if anything would happen or if ADB would start functioning. I also tried fully draining my battery overnight and nothing happened. My files are not deleted/fully corrupt since I could still see them when flashing through internal storage from Recovery Mode. OnePlus chat support said I have to flash my phone and Twitter support refused to respond. Local data recovery centers said I could get my phone shipped to them for a free diagnostic, should I do so or is there a way to unbrick or recover my data at home?
Is there anything I can do? Thank you very much!... for now I'll just remain depressed...
TL;DR - My phone's stuck at the circles boot animation and I want to recover my files or fix the soft-brick without resetting. I don't have root access, custom recovery, or an unlocked bootloader.

UPDATE: I boot into Recovery Mode and "Reset System Settings"- my phone rebooted with 112 gigabytes of storage already taken up and all of my Android/data folders empty! I lost very little as I set my save folders to other locations! It looks like the error was not having enough storage! OnePlus chat support said that I had to factory reset my phone, DO NOT listen to them! MY PHONE IS UNBRICKED!
Check out other responses:
https://www.reddit.com/r/Oneplus5T/comments/ahfabg/data_recovery_for_softbricked_oneplus_5t/
https://forums.oneplus.com/threads/data-recovery-for-soft-bricked-oneplus-5t.986096