I don't remember what caused it, but my bootloader and charging screen are completely black. I can see screen brightness but there is no content on the screen.
How do I fix it?
My phone is unlocked so I maybe have changed any fastboot setting which caused it, but I can't remember.
VarunAgw said:
I don't remember what caused it, but my bootloader and charging screen are completely black. I can see screen brightness but there is no content on the screen.
How do I fix it?
My phone is unlocked so I maybe have changed any fastboot setting which caused it, but I can't remember.
Click to expand...
Click to collapse
Did you managed to fix it ? I have the exact same problem, but I couldn't find any solution on the internet..
If I enter fastboot it stays in black screen, although it's perfectly working (i can flash stock firmware, enter recovery and other things, but I move from one option to another 'cause I remember how they are ordered). Moreover, the black screen stays until the phone is totally booted, and than it works normally.. No bootanimation during all the boot process.
BrnLuca said:
Did you managed to fix it ? I have the exact same problem, but I couldn't find any solution on the internet..
If I enter fastboot it stays in black screen, although it's perfectly working (i can flash stock firmware, enter recovery and other things, but I move from one option to another 'cause I remember how they are ordered). Moreover, the black screen stays until the phone is totally booted, and than it works normally.. No bootanimation during all the boot process.
Click to expand...
Click to collapse
It still has that issue. Like you, Android is working fine so I decided to leave it as-it-as and not to mess up further.
Related
Hi people. I have been running a rooted phone for a while and decided to go back to unrooted recently. I decided I would like to use the barclays app and apply the new updates that samsung rolled out recently. However when I flashed the stock firmware I found that the screen no longer worked. The phone seemed to boot up and play the samsung startup jingle but no splash logo. just a black screen. To test I decided to call it and the call came through ok and answered with the home button, speech all functional???!! Just no screen ... completely black??? Would this likely be a fault with the firmware or is it just uncanny timing with a faulty screen??? confused and wondered if anyone else has come across this before I go but a new screen. I downloaded the firmware from hotfile "I9505XXUDMH8_I9505OXXDMHA_I9505XXUDMH8_HOME"
thanks in advance
jamhot said:
Hi people. I have been running a rooted phone for a while and decided to go back to unrooted recently. I decided I would like to use the barclays app and apply the new updates that samsung rolled out recently. However when I flashed the stock firmware I found that the screen no longer worked. The phone seemed to boot up and play the samsung startup jingle but no splash logo. just a black screen. To test I decided to call it and the call came through ok and answered with the home button, speech all functional???!! Just no screen ... completely black??? Would this likely be a fault with the firmware or is it just uncanny timing with a faulty screen??? confused and wondered if anyone else has come across this before I go but a new screen. I downloaded the firmware from hotfile "I9505XXUDMH8_I9505OXXDMHA_I9505XXUDMH8_HOME"
thanks in advance
Click to expand...
Click to collapse
i would say to stay away from new firmwares at this time....you are stuck in the locked bootloader.
can you boot in recovery or odin modes and see the screen?
wipe data and cache and reflash the MH8 then do the wipe. see if that works
can not determine if it is a HW or SW issue.
if you want to use app that doesnt require root like Barcley and you are rooted, you can hide the root with some available app.
It seems I am able to get the device into download mode, although nothing comes on the screen. I just have to do the procedure blind. No matter what I do nothing comes up. It also seems I can only get the phone to read the internal memory through USB once a flash procedure has completed. It seems to force a boot up but when I try to restart manually it does nothing but vibrate and only seems to be able to put into download mode while blind. I find it very unusual that the screen should suddenly stop working the moment I try and flash the standard firmware. Getting worried now. nothing seems to work
Can anyone help here??? I have tried flashing several times. Just vibrates and does nothing. I can get it into download mode but I don't get any warning screen up. I just go through the button combo's blind and it manages to get into communication with a odin com port. I have tried doing a PIT download. What I was then finding is that the phone can bring up a recovery screen with option to reset, I reset but the phone will just be a black screen and play the samsung start jingle without the splash screen. It then seems to boot and receive notifications with a totally black screen. completely unresponsive.
If you can't see a splash screen or even recovery and download mode screens, then I'd say its a hw issue and no ROM is going to fix it, because those mentioned things are not even tied to the ROM.
Your screen has broken some how, it could be as simple as a flexi connector falling out or as bad as your screen being totally gone.
Sent from my GT-I9505 using xda app-developers app
It doesn't look like hardware problem
i am facing exactly similar situation with a 9505, i tested LCD with another of my 9505, and LCD is ok
is just happened after an Odin flash of stock firmware.
Hey guys, got a nexus 6p today and first time powering up and charge was OK... Then connected to pc to unlock and root, but forgot to toggle the device unlock under developer settings. So bootloader unlocking failed. I rebooted to system to toggle the settings but the screen won't light up now, but the phone will boot up all the way.
The screen will not light up when I charge it, boot into bootloader, no Google splash screen, or Google bootani. So nothing I do will light up the screen... The phone boots up and connects because I hear notification alerts for email and texts..
II tried factory reset, but fastboot format failed because I need to unlock bootloader first, but can't. I can't get into recovery to wipe because I can't see anything to navigate to recovery. So I either have a dead screen, or something else... I'm open to suggestions before returning...
Thanks
chewy74 said:
Hey guys, got a nexus 6p today and first time powering up and charge was OK... Then connected to pc to unlock and root, but forgot to toggle the device unlock under developer settings. So bootloader unlocking failed. I rebooted to system to toggle the settings but the screen won't light up now, but the phone will boot up all the way.
The screen will not light up when I charge it, boot into bootloader, no Google splash screen, or Google bootani. So nothing I do will light up the screen... The phone boots up and connects because I hear notification alerts for email and texts..
II tried factory reset, but fastboot format failed because I need to unlock bootloader first, but can't. I can't get into recovery to wipe because I can't see anything to navigate to recovery. So I either have a dead screen, or something else... I'm open to suggestions before returning...
Thanks
Click to expand...
Click to collapse
Sounds to me like a hardware failure, almost definitely completely unrelated to what you were doing at the time. You'll have to have it replaced.
Yea, I was hoping it was something else... I just returned it... Now I have to wait for them to send another one.
Thanks for the reply :good:
Heisenberg said:
Sounds to me like a hardware failure, almost definitely completely unrelated to what you were doing at the time. You'll have to have it replaced.
Click to expand...
Click to collapse
Had the same experience as some of you - my Yotaphone got bricked (not sure why, but soon after .136RU update) and ended up in a bootloop - "Powered by Android" logo, reboot every couple of minutes. Tried flashing different recoveries and systems but no change.
Recently I've ordered a set of screwdrivers and opened my phone, disconnected the epd screen and the battery (this one only for a couple of minutes) and tried fastboot again.
Power + vol up (recovery) didn't work before and now it does, so I'm in Twrp. That's all for now (had to go to work ), but will keep you posted afterwards.
Above I'm putting the YT video I was using to safely open Y2, you will need T3 screwdriver and some lever to lift the EPD back cover - be careful, use sth soft (wood/ABS), it looks like it's very easy to break the glass.
So, back to the story..
Was in TWRP and had the full funcionality, except for the OTG. ADB also didn't work (haven't switched debugging on when Y2 was alive..). So went back to the fastboot (Power + Vol Down).
Yotaflasher did crappy job so I had to flash everything manually, command after command:
fastboot flash aboot firmware/emmc_appsboot.mbn
fastboot flash boot firmware/boot.img
fastboot flash cache firmware/cache.img
fastboot flash modem firmware/radio/NON-HLOS.bin
fastboot flash sbl1 firmware/radio/sbl1.mbn
fastboot flash rpm firmware/radio/rpm.mbn
fastboot flash tz firmware/radio/tz.mbn
fastboot flash userdata firmware/userdata.img
fastboot flash -S 512M system firmware/system.img
fastboot reboot
Click to expand...
Click to collapse
(didn't include recovery - have it already)
Now Y2 went through the "Powered by Android" logo and stopped for a while (maybe even 10min..) at its own boot animation. After that I was welcomed by Language choice menu and quickly after had my phone working. Now it's downloading .136RU update again.
Mind it's also still disconeccted from EPD screen - it has some dead pixel lines and can't figure out where lies the problem, will play with that tomorrow.
PS. Don't forget to enable USB debugging when you have the chance!
I can 't see youtube video. It is not valid. Pkease reupload him.
Maristrat said:
I can 't see youtube video. It is not valid. Pkease reupload him.
Click to expand...
Click to collapse
visit the link
Thanks. I have the same problem. Yt 201 buyed under www.coolicool.com after a ota it rest in booploop. After i disconnect baterry and lcd. I shalluse twmp or it enough fastboost with all the commands?
Maristrat said:
Thanks. I have the same problem. Yt 201 buyed under www.coolicool.com after a ota it rest in booploop. After i disconnect baterry and lcd. I shalluse twmp or it enough fastboost with all the commands?
Click to expand...
Click to collapse
maybe first just disconnect battery and epd screen and try to boot, if no then flash twrp and do factory reset and try again, if still no change then erase data and flash new system image
keeeper said:
maybe first just disconnect battery and epd screen and try to boot, if no then flash twrp and do factory reset and try again, if still no change then erase data and flash new system image
Click to expand...
Click to collapse
I have tried all, disconnect flash twmp nothing happens. I have installed again the system but it rest in bootlooop.
wow, i am not alone with this problem. Why does the problem is coming at same time in december ? any bad updates? hm.
Anybody told with yotaphone support about this problem ?
im not realy a mobile crack, its not easy for me to understand this repair process. the only thing i have do is restore und wipe cache function in the bootloader.
Then i have uploaded the newest firmware with yotaflasher. it was successfull.
ftp://fw.ydevices.com/YotaPhone2/Firmwares/EU/5.0.0-EU1.1.87a.zip
But this was not the solution. i will try "5.0.0-EU1.1.124b.zip" this is from august 2016 newer then all.
keeeper you have make manually flash, it was success? I dont know how it works with command lines. And my english is not good.
I had debugging on mode when my yota was alive.
somehow yotaflasher does not do its job properly, at least on my PC - while flashing the system directory manually it takes me a large while to move about 1GB of data, YF does it much faster, what was really suspicious.
i have flashed the new 124b now, then it updated something. And then, ahhhhhhh i see the start screen where i can choose my language. but when i plug of the handy from PC, the screen is off. game over.
i think my phone have a damaged RAM.
Question,... why does yotaflasher needs only 10sec. to flashed a 1GB firmware ??? thats unreal.
maybe first just disconnect battery and epd screen and try to boot, if no then flash twrp and do factory reset and try again, if still no change then erase data and flash new system image
Click to expand...
Click to collapse
i want to try this, but it makes me worry
izanagi23 said:
And then, ahhhhhhh i see the start screen where i can choose my language. but when i plug of the handy from PC, the screen is off
Click to expand...
Click to collapse
Is the battery fully charged? QC doesn't work all the time - it needs CPU to help and for example in recovery mode CPU doesn't support quick charging.
i cant see if it full loaded. i only plug in to power suply. Today im come to the welcome screen !!! And then, i type the password for my wlan to start configuration. But it freezed und go down.
i send you my pictures from the state. i think,.... its damaged hardware
i dont understand that the phone is started alone after 15 minutes. then crashing 10 times on boot and then mute. after 10 - 20 minutes it started again. i do nothing, it is only plug in powersuply.
izanagi23 said:
i cant see if it full loaded. i only plug in to power suply. Today im come to the welcome screen !!! And then, i type the password for my wlan to start configuration. But it freezed und go down.
i send you my pictures from the state. i think,.... its damaged hardware
i dont understand that the phone is started alone after 15 minutes. then crashing 10 times on boot and then mute. after 10 - 20 minutes it started again. i do nothing, it is only plug in powersuply.
Click to expand...
Click to collapse
I would try to disconnect the EPD completely (like in this thread and try if there's any change.
I've also had problems with random reboots but after saying goodbye to the back screen Yotaphone works like a charm. I know that wasn't the point of buying this phone but even without the EPD it's still a great device.
but this can not be normal without EPD i can use my s5
Today i was longer time in the OS. i have configured the phone and the wlan. After 5min. its crash and reboot. The battery was 1% !!!
After complete one night charging it is on 50%. this is not normal. On the EPD i have a double screen ?! 25% size on left side and on right side clone.
My Yota is a new device, i will try to send it to the seller or manufacturer
this is unbelievable. after i loading the accu complete, i can start the phone. And all works. 5 days long the phone lay without used it. After this days the phone works. Then i have install whatsapp, activate yotaFit, and will configure the "keyboard". After i changed the Keyboard Layout, UI-system hold on and the phone crashed.
After this, the phone was reboot some times and crashed again. Now, i have the same problem. What is this F** S** ?
The phone only works fine, when i do nothing. when the phone lay one week without interaction. yeay!
izanagi23 said:
i have flashed the new 124b now, then it updated something. And then, ahhhhhhh i see the start screen where i can choose my language. But when i plug of the handy from pc, the screen is off. Game over.
i think my phone have a damaged ram.
Question,... Why does yotaflasher needs only 10sec. To flashed a 1gb firmware ??? Thats unreal.
I want to try this, but it makes me worry :d
Click to expand...
Click to collapse
good afternoons i have the problem that is drained in the android logo but i can not access the recovery in any way what can i do? Do i have to remove the battery to access recovery?
By the way I have a YotaPhone 1 with a bootloop problem. Could anyone help me with finding the stock rom so that I can revive my phone?
Hello,
no matter what I flash (even stock), after I enter my SIM-Pin, the screen just turns black, but I see the power-menu when I hold the button and the statusbar with blinking wallpaper when pressing back-button.
Any help?
Thanks!
Hecke92 said:
Hello,
no matter what I flash (even stock), after I enter my SIM-Pin, the screen just turns black, but I see the power-menu when I hold the button and the statusbar with blinking wallpaper when pressing back-button.
Any help?
Thanks!
Click to expand...
Click to collapse
Maybe need more information.
Are you on stock or rooted on costum rom? If so what rom, kernel etc
Thanks, but as stated before:
It doesn't matter, went back to full stock, but same problem...
I wanted to flash new rom in the morning and it kept saying system-partition is busy.
Hecke92 said:
Thanks, but as stated before:
It doesn't matter, went back to full stock, but same problem...
I wanted to flash new rom in the morning and it kept saying system-partition is busy.
Click to expand...
Click to collapse
Idk, I had the same problem where I would clean flash everything and install a new fully stock OOS ROM and it used to take me to the security thing and I input my PIN and it just used to go black and reboot the system, and sometimes not boot at all.
I then either used this <https://forum.xda-developers.com/attachment.php?attachmentid=3761904&d=1464187934> or I changed the file system to Ext4.
I'd rather you try the zip out first. It'll work. I'm 98% sure I used it. Although to save my butt I take zero responsibility of your actions lol.
same as mine
mine is also becoming black screen today, yesterday i was on reading mode and i saw some marks on the corner red, then today totally black. try to flash or reboot it 50 times but still the same.
i flash using msm download woke up abut the screen is blinking then stopped again
Connect to PC with fastboot
fastboot format system
fastboot format cache
Reboot into recovery and flash a new ROM.
???
Profit!
when booting up to root , after a few times , it eventually gets stuck in a loop of , pin to open on restart , which just goes black , then returns to pin screen?
Anybody else had this problem or just mt phone?
WARKRIME said:
when booting up to root , after a few times , it eventually gets stuck in a loop of , pin to open on restart , which just goes black , then returns to pin screen?
Anybody else had this problem or just mt phone?
Click to expand...
Click to collapse
I have exactly the same problem, I installed thirdparty launcher like lawchair 2, and set it to default.
Don't know if it had something to do with this.
Now I flashed back to stock ROM.
Any one have a solution on this?
Not just your phone, I am experiencing this as well as of this moment. I have Galaxy S10, bootloader unlocked, rooted with Magisk and installed hades ROM.
After todays reboot, I cannot use my phone - on lockscreen, I draw a pattern and it just goes back to lock screen. It doesn't matter whether I boot the phone in root mode (Power + Bixby + Vol Up) or normal mode (just start with Power button).
I don't know how to fix it and I want to avoid reflashing the whole phone as I just finished setting it up from scratch.
Well... interesting thing... when this happens to you next time, try to boot into recovery (TWRP) and then back to system.
This has helped me twice now. After such reboot, I can get past the lock screen loop.
Still trying to figure out how to fix this.
zoomsk said:
Well... interesting thing... when this happens to you next time, try to boot into recovery (TWRP) and then back to system.
This has helped me twice now. After such reboot, I can get past the lock screen loop.
Still trying to figure out how to fix this.
Click to expand...
Click to collapse
When you do that, you boot in the non Rooted System. There it works for me too. But when i try booting into rooted System i have a Lockscreen loop as described of you.
btw Galaxy s10 SM-G973F
I ve been there once. In my case it was the SoundAssistant app causing this. Somehow. Luckily I had my PC authorized so I was able to use adb to uninstall the app and reboot. Then reinstall.
A little more details on this fyi, it isnt bootloop because its still in the lock screen. Just the app (with "appear on top" permissions) somehow isnt able to load properly so it keeps opening and closing.
If you happen to have SoundAssistant installed, try above. If not, you can go to safemode see if it still happens. After that you might need to take some time to figure out which app is causing.
I dont think this has anything to do with Magisk or root, at all.
alex.do said:
I ve been there once. In my case it was the SoundAssistant app causing this. Somehow. Luckily I had my PC authorized so I was able to use adb to uninstall the app and reboot. Then reinstall.
A little more details on this fyi, it isnt bootloop because its still in the lock screen. Just the app (with "appear on top" permissions) somehow isnt able to load properly so it keeps opening and closing.
If you happen to have SoundAssistant installed, try above. If not, you can go to safemode see if it still happens. After that you might need to take some time to figure out which app is causing.
I dont think this has anything to do with Magisk or root, at all.
Click to expand...
Click to collapse
I think do too. Had it solved by renaming every item with "keypass" in /vendor/lib/hw
which disabled my pin, so everything worked fine.
WARKRIME said:
when booting up to root , after a few times , it eventually gets stuck in a loop of , pin to open on restart , which just goes black , then returns to pin screen?
Anybody else had this problem or just mt phone?
Click to expand...
Click to collapse
Same problem