Develop Bugs

Just another person who has Hard Bricked his M8

Hello Everyone
TL;DR Screen doesn't come on at all, battery led only flashes while it is rebooting (More details below), and When plugged in to my windows pc, a bunch of "Local Disk Found" pop up, some of the volumes I can access, most I cannot.
I have searched and searched the internet the past 24 for solutions, and have yet to find one. So imma walk you through what led up to the issue, as well what solutions I have tried.
Yesterday while I was trying to update my rom, I ended up getting stuck in what I thought was a boot loop. I then decided to hard reset my phone and go into recovery in hope to try to reinstall the rom. To my surprise, I could not access the internal sd card in the phone. Data was unmounted in the "Mount" settings and I could not what so ever remount it. After this I tried to side load it, but to no avail.
In response to all my attempts to fix the phone at that point, in frustration, I just said "**** it" and went into factory reset in the bootloader. This is where the hard brick happened. At this point, the screen would not come one, and the battery led was not lit when plugged in. I tried letting my phone charge over night and then, tried the "Battery Recalibrate method". I then tried the "Hold Pwr + Volume up for 10 seconds, then Power + volume Down until you access the bootloader"
After that, I then thought that the firmware was corrupted, so I tried to see if I could push an img to the phone, however fastboot does not see the device. I tried RUU, it does not see the device. I tried the HTC Unbrick method by Dexter that required me to install ubuntu and do some things in terminal, that also did not find the device. And here I am stuck. One thing unique to my situation that I have yet seen reported in the countless threads I have searched, is that when I plug my phone to my pc, a large amount of disk drives are found. Most of them are not accessible, but there are a couple that I can go in and see files for. Windows asks me if I want to format the ones I can't access. When hooked to my pc, I tried the the Power + volume button combinations, the only thing that seems to happen off of this is that my phone seems to reboots, and the battery indicator briefly shows.
Anyways, this is all I can remember. Any help would be GREATLY appreciated. I don't really think it is a hardware related issue since my phone does somewhat boot. However it seems it can't get to a bootloader what so ever.

Try holding power and vol up for a long time, like a minute or more. Try with and without charger attached, and after sitting on charger overnight.
If the bootloader is intact, the phone is likely not truly bricked (recoverable). And I don't see how you could have damaged hboot by the actions you mentioned.
What is the phone's original CID (carrier version) and are you s-on or s-off?

redpoint73 said:
Try holding power and vol up for a long time, like a minute or more. Try with and without charger attached, and after sitting on charger overnight.
If the bootloader is intact, the phone is likely not truly bricked (recoverable). And I don't see how you could have damaged hboot by the actions you mentioned.
What is the phone's original CID (carrier version) and are you s-on or s-off?
Click to expand...
Click to collapse
Verizon is the carrier version, and I am s-off.

Held vol + up for 5 minutes both with and without the charger. One time with the charger into my computer, and another into the wall. When it was in my pc, I can tell its doing nothing but rebooting over and over by the notification sound, and the constant "Found new disk" notifications I got. However still no luck, no screen turns on, no sign of hboot. I'm hoping to have some luck after leaving it on charge overnight and trying again.

TheBizkit said:
Held vol + up for 5 minutes both with and without the charger. One time with the charger into my computer, and another into the wall. When it was in my pc, I can tell its doing nothing but rebooting over and over by the notification sound, and the constant "Found new disk" notifications I got. However still no luck, no screen turns on, no sign of hboot. I'm hoping to have some luck after leaving it on charge overnight and trying again.
Click to expand...
Click to collapse
So still nothing after leaving it on charge overnight and I held vol + up for about 5 minutes. Things seem grim.

I think the proper thing to do when you discovered internal storage was not mountable, would have been to use the TWRP option to format internal storage (in Advanced Wipe options).
But now I'm baffled as to what happened that would have rendered the phone unable to boot into fastboot mode. Fastboot won't recognize the device if you can't boot into fastboot mode, which leaves use kinda stuck.
So you didn't try to flash anything during the course of all this troubleshooting?

What you did - "Hold Pwr + Volume up for 10 seconds, then Power + volume Down until you access the bootloader" is totally wrong
I used to get this bunch of local disk pop-up and this is how I get out the problem
Connect the device to pc, you can hear notification sound on pc that device is connected. Ignore all those bunch of local disk pop-up
Press & hold both power button & volume up button until you hear another notification sound that device is disconnected from PC (that's the indication that device is restarted)
Release both power & volume up button and quickly press & hold volume down button (only this one button)
This should get you on bootloader

redpoint73 said:
I think the proper thing to do when you discovered internal storage was not mountable, would have been to use the TWRP option to format internal storage (in Advanced Wipe options).
But now I'm baffled as to what happened that would have rendered the phone unable to boot into fastboot mode. Fastboot won't recognize the device if you can't boot into fastboot mode, which leaves use kinda stuck.
So you didn't try to flash anything during the course of all this troubleshooting?
Click to expand...
Click to collapse
No, nothing was flashed except the original Rom update that got this snowball rolling (Not saying its the roms fault, most likely mine).
ckpv5 said:
What you did - "Hold Pwr + Volume up for 10 seconds, then Power + volume Down until you access the bootloader" is totally wrong
I used to get this bunch of local disk pop-up and this is how I get out the problem
Connect the device to pc, you can hear notification sound on pc that device is connected. Ignore all those bunch of local disk pop-up
Press & hold both power button & volume up button until you hear another notification sound that device is disconnected from PC (that's the indication that device is restarted)
Release both power & volume up button and quickly press & hold volume down button (only this one button)
This should get you on bootloader
Click to expand...
Click to collapse
This is the one combination I forgot to mention in the op, sorry for that.
But I have tried this, before and after your post, still no luck.
If it worth mentioning, I can just hold power + down and it still reboots over and over. As well as just power. As a matter of fact, all button combinations reboot the phone over and over.

TheBizkit said:
If it worth mentioning, I can just hold power + down and it still reboots over and over. As well as just power. As a matter of fact, all button combinations reboot the phone over and over.
Click to expand...
Click to collapse
I thought the screen was dead? If so, how do you know its rebooting?

redpoint73 said:
I thought the screen was dead? If so, how do you know its rebooting?
Click to expand...
Click to collapse
By it constantly connecting and disconnecting from my pc. If that doesn't mean its rebooting, then I guess I'm mistaken.

TheBizkit said:
By it constantly connecting and disconnecting from my pc. If that doesn't mean its rebooting, then I guess I'm mistaken.
Click to expand...
Click to collapse
Well, it might mean that.
If it in fact is rebooting over and over on its won, simply holding the vol down button for a long time, should put you into bootloader (on the next reboot "cycle"). Again, assuming it is in fact rebooting, and that bootloader is intact.

Collection of mode entries with hardware key combination (maybe for most LG models)

This thread only introduce hardware methods to enter specific modes, however, if possible, use software method like advanced reboot, adb reboot, magisk reboot, etc. instead for stable entries.
Force reboot: hold both volume- and power keys for 8 seconds (maybe reboot at the 9th second, so hold until the screen changes). This can quit any other mode. Somebody says if you can count time accurately, you can just shutdown the phone instead of rebooting, but I have never succeeded
Normal boot: when your phone is off, hold power key until your phone vibrates (if your phone can boot to system).
Safe mode: during normal booting, when you see the dynamic animation of LG (not static monochromatic logos), hold volume- key until the phone vibrates (you can start holding it even earlier, but make sure holding it until you really enter the safe mode). In this mode, only system apps, default settings and basic functions are enabled. Any reboot quits this mode.
Recovery (stock for master reset or custom twrp): hold volume- and power keys until the initial boot screen of "LG V30" with "powered by Android" displays. (If you have unlocked the bootloader, this screen would display twice, but only the first time is what we are talking about.) Immediately release the power key and hold it again (in other words, pause holding the power button for less than 1 second). Then after the screen changes, release all keys and do further steps according to the instructions displayed.
LG download mode: shutdown your phone first. Hold volume+ key and connect the phone to a working computer via USB. Then the phone should boot to download mode.
Fastboot/Bootloader (if any): similar like the download mode, but use volume- instead of +. However some firmwares may miss this mode. If it works, it should boot to the fastboot interface immediately and you can power off the phone there.
Information screen (I don't know what it's called exactly): shutdown your phone first. Hold all the three of volume+, volume- and power keys, and this will lead you to a screen listing MEID, IMEI and S/N of your phone with corresponding barcodes.
Qualcomm 9008/EDL/QDLoader mode (sometimes even called Qualcomm download mode, but not Android download mode) (mentioned in One way to force shutdown your phone, try this if other modes do not work): connect your phone to a working computer via USB. Hold volume- and power key, around the moment your phone force reboots press volume+ for multiple times (with holding other keys). In device manager on the computer, see if a device named something with "Q" like QUSB_BULK (no proper driver installed) or Qualcomm EDL HS-USB 9008 (proper driver installed) other than anything containing "Android" or "ADB", the phone enters the 9008 mode. If not, unplug the cable and try it again. This can turn off the screen. If you find difficulty to perform it, you can also try other more general methods like test points shortening (see test points lg v30 plus for 9008 mode) or engineering cable (not tested yet).
Yet there is no way to shutdown the phone directly with simple key combination, but you can refer One way to force shutdown your phone to make it if you cannot use regular methods to shut your phone down.
If anything missing, please reply to let me know

Question Reaching EDL mode

Think I screwed up some ordering when installing LIneage and now my phone only reaches Fastboot. What's the correct way to reach EDL? The internet says to hold vol up + vol down for 40s then connect to a computer while holding. This seems to consistently boot fastboot for me instead, regardless of what computer I connect my phone to. Otherwise my phone goes to Qualcomm Crashdump mode

I get it to work by turning phone complete off, hold vol up and down, plug phone in and immediately press start. That should do it

Note is stuck in a bootloop - and I can't seem to install recovery/not sure if it's corrupt

Hey all,
Hope you've been keeping safe and well.
So I was flashing the new PixelExperience ROM - and seems like I made an error somewhere along the way.
I'm looking to return to stock, and then give the process another shot - but at the moment my phone is stuck in a bootloop.
The bootloader is unlocked - and the boot goes through the following screens before rebooting:
1. Samsung Logo
2. "The phone's bootloader in unlocked....Press power key to continue"
3. Samsung Note 10+ Logo Screen.
I'm trying my best to try and boot into either download or recovery mode, but to no avail - it just restarts the bootloop on each combination I've tried.
Any solutions on how to get moving with this?
Thanks!

rajalot said:
Hey all,
Hope you've been keeping safe and well.
So I was flashing the new PixelExperience ROM - and seems like I made an error somewhere along the way.
I'm looking to return to stock, and then give the process another shot - but at the moment my phone is stuck in a bootloop.
The bootloader is unlocked - and the boot goes through the following screens before rebooting:
1. Samsung Logo
2. "The phone's bootloader in unlocked....Press power key to continue"
3. Samsung Note 10+ Logo Screen.
I'm trying my best to try and boot into either download or recovery mode, but to no avail - it just restarts the bootloop on each combination I've tried.
Any solutions on how to get moving with this?
Thanks!
Click to expand...
Click to collapse
Timing will be the key. To help out, boot up as you have been, but as early into the boot cycle press and hold the Vol - and power button for up to 5 seconds (until phone manually shuts off) [it will actually reboot the phone])), then the instant it powers off and begins to power back on (try a few times to get used to the timing) press and hold the key combination for recovery or download mode. In my experience whatever combination you go with while booting, the power button only needs to be held for the first 5 seconds or so of the combo button press/hold.
The other button, Vol+ or Vol- should constantly be held until desired mode begins to load.

louforgiveno said:
Timing will be the key. To help out, boot up as you have been, but as early into the boot cycle press and hold the Vol - and power button for up to 5 seconds (until phone manually shuts off) [it will actually reboot the phone])), then the instant it powers off and begins to power back on (try a few times to get used to the timing) press and hold the key combination for recovery or download mode. In my experience whatever combination you go with while booting, the power button only needs to be held for the first 5 seconds or so of the combo button press/hold.
The other button, Vol+ or Vol- should constantly be held until desired mode begins to load.
Click to expand...
Click to collapse
Thanks for your quick and detailed reply man, appreciate it.
Still trying, new cords, ports, the whole buffet. Will keep at it.
Major flag though - my PC doesn't recognise the phone anymore, checked the USB ports in Device Management and nothing comes up. I've tried different cords and ports to no avail.
I have a feeling that because the device doesn't think it's not plugged in - it doesn't boot into recovery.
Just another detail - the flash goes on just before the reboot. Does this signify anything?

rajalot said:
Thanks for your quick and detailed reply man, appreciate it.
Still trying, new cords, ports, the whole buffet. Will keep at it.
Major flag though - my PC doesn't recognise the phone anymore, checked the USB ports in Device Management and nothing comes up. I've tried different cords and ports to no avail.
I have a feeling that because the device doesn't think it's not plugged in - it doesn't boot into recovery.
Just another detail - the flash goes on just before the reboot. Does this signify anything?
Click to expand...
Click to collapse
I'm not familiar with any significance the flash may point to. You've probably already done this.....but be sure to reboot PC....
Have you tried booting to recovery yet?

Question Why wont my S22 go into Download mode or recovery mode?

So I have spent hours now looking around for an answer the phone is find my phone locked and I can't remember my pin code. I have done all the tricks with the combination keys.
The usual way to get into Recovery mode is Hold V+ and power until the phone vibrates and you should be in recovery mode release the keys. (Doesn't work)
Iv read that you should have the USB cable connected from pc/laptop while you do the same holding V+ and power button... (doesn't work ether)
and download mode should be very easy just hold V+ and V- plug USB cable from pc/laptop and you should get into download mode by pressing V+. Will only show charging Icon and that's its.
So is it possible to turn off this modes from the manufactor? Or is this a completely new security future? How can you use odin? How can you wipe the cache? If you end up having some issues.
Im going nuts....
No way to get into fastboot ether. So if anyone know why this is happening to me or got any solution I would appreciate it.

Plug in your cable with the phone turned on. Hit Power Off and wait for the phone to fully turn off. The charging logo will show up so let the animation do its thing. After maybe 20 seconds, press Volume up + Power and keep them pressed until you boot to recovery. If the command wasn't recorded in the first place and the phone is still off after more than 15 seconds, let go of the buttons and press them again and keep them pressed until it boots in Recovery

dragos281993 said:
Plug in your cable with the phone turned on. Hit Power Off and wait for the phone to fully turn off. The charging logo will show up so let the animation do its thing. After maybe 20 seconds, press Volume up + Power and keep them pressed until you boot to recovery. If the command wasn't recorded in the first place and the phone is still off after more than 15 seconds, let go of the buttons and press them again and keep them pressed until it boots in Recovery
Click to expand...
Click to collapse
It will not work. How the hell should I be able to cle3ar cache if I got a boot loop ??? They can't just turn off recovery mode mand download mode??? This is so strange even paying for a frp reset but not even he does know what wrong??? Can they turn off fastboot, recovery mode and Download mode on this new phones? Is it because its locked with find my phone? 1 week researching now. It will only vibrate. And my PC cant find my phone anymore worked fine 30min ago nothing has changed... So annoying never seen this happened before every combination with buttons to get in any mode doesn't work only vibrates and go to pin lock screen...

Take it to a Samsung Experience center at best buy. Or send it into Samsung for repair.

download mode:
Turn off phone
plug cable in pc but not in phone
pres "volume +" and "volume -" in the same time
plug cable in phone
recovery mode:
plug cable in pc and s22
power off
press "volume +" and power
wait until see recovery mode

starciti said:
download mode:
Turn off phone
plug cable in pc but not in phone
pres "volume +" and "volume -" in the same time
plug cable in phone
recovery mode:
plug cable in pc and s22
power off
press "volume +" and power
wait until see recovery mode
Click to expand...
Click to collapse
thats a solid advice assuming his bootloader/recovery/download mode is fully functional then this advice works, in his case and in mine too it does not work and trying to get to the root of the problem is the key. In my case recovery mode gives error on screen so it may have to do with the way firmware is installed as these modes are not accessible.

have you sorted it out? Its nearly a year onwards =)

CrispShadow19 said:
thats a solid advice assuming his bootloader/recovery/download mode is fully functional then this advice works, in his case and in mine too it does not work and trying to get to the root of the problem is the key. In my case recovery mode gives error on screen so it may have to do with the way firmware is installed as these modes are not accessible.
Click to expand...
Click to collapse
This, at index 2:48 minutes.
It needs to be connected to the PC. Another screwy quirk Samsung added recently. Your button timing/sequence matters as well.
On my N10+'s you can go into recovery directly with a restart if you do it right. Otherwise they will puke on you.