Database Users

[Q] Black Screen...

Hello all. First let me state that I rather not make a thread to ask help on a problem that seems to have happened to a few owners, but my knowledge as to how I could resolve the issue is severely lacking..
At some point today my phone was ringing but the screen would not show. I thought about taking the battery out and turning it back on but there would be no HTC, Bootanimation, anything. It was Just a black-lit screen which responds due to tactile feedback and the four touchkeys light up as usual. At first there was an odd sound that would play after a few minutes so I decided to charge it but again there was nothing. Even tried to access bootloader with -Vol and Power still no screen.
I asked a friend of mine to call my phone to see if it would ring but they said it instantly goes to voicemail as if my phone was off. Note that I WAS SURE IT WAS ON.
Adb seems to work with it as it seems whatever I need to do I have to do it through there.
G2 rooted with gfree method
CM7.1 RC1
Clockwork Recovery
Again i am sorry if I bothered those with posting something others would think is "too common of a problem" as I have no experience in fixing this issue. Plus I would like to try any option available as I would not like to try and have my phone replaced (because of the risk of discovering root and obtaining a G2 with stock gingerbread which is currently not rootable)
Please help..

It sounds like you're suffering from some sort of hardware failure. You need to send your phone in for repair/replacement.

The Unnamed Time Lord said:
Hello all. First let me state that I rather not make a thread to ask help on a problem that seems to have happened to a few owners, but my knowledge as to how I could resolve the issue is severely lacking..
At some point today my phone was ringing but the screen would not show. I thought about taking the battery out and turning it back on but there would be no HTC, Bootanimation, anything. It was Just a black-lit screen which responds due to tactile feedback and the four touchkeys light up as usual. At first there was an odd sound that would play after a few minutes so I decided to charge it but again there was nothing. Even tried to access bootloader with -Vol and Power still no screen.
I asked a friend of mine to call my phone to see if it would ring but they said it instantly goes to voicemail as if my phone was off. Note that I WAS SURE IT WAS ON.
Adb seems to work with it as it seems whatever I need to do I have to do it through there.
G2 rooted with gfree method
CM7.1 RC1
Clockwork Recovery
Again i am sorry if I bothered those with posting something others would think is "too common of a problem" as I have no experience in fixing this issue. Plus I would like to try any option available as I would not like to try and have my phone replaced (because of the risk of discovering root and obtaining a G2 with stock gingerbread which is currently not rootable)
Please help..
Click to expand...
Click to collapse
A. They don't care if its rooted.
B. You can root stock Gingerbread.

Same issue here...
I'm facing the same issue, when i try to unlock the phone (power button or trackpad) the screen lights but stays black, and the buttons are also backlit. I have to lock again with power button and unlock again to get to the actual screen.
It first happened a few days ago, and since i didn't reboot/restart in weeks i tried to reboot but the same issue comes back.
then i shut it down, pulled the battery and then back, and restarted: the phone goes directly to that black backlit screen, i tried several times and tried recovery with no luck, so i thought my phone was messed up although i did have some haptic feedback, well in fact the phone was actually booting, but just not showing anything else than the backlit screen; i waited a minute or so to the booting completes (still shows nothing), then i lock/unlock the screen again and there it is, asking for the pin code.
I tried to go to the recovery again to try to wipe dalvik-cache, i know for sure it goes to recovery, but with a totally black screen, not even backlit this time; the trackpad is too sensitive in the recovery to just blindly navigate in the menu, so it is not useable at all.
Then i had the idea to go to Rom Manager, i reflashed the rom from my sd-card, and enabling wipe dalvik-cache, which worked (all through a black screen). After a few minutes i "felt" it rebooting (vibrating) but still back to that black backlit screen, and i locked/unlocked it again and back it was asking pin code...
I also tried to roll back recovery to 3.0.2.4, since i remember i updated it a few weeks ago, but still the same issue.
I don't know what else to do without accessing the recovery, i wanted to try another kernel, or remove the trackpad wake... is there a way to do it via a script? I guess it's what Rom manager does...
Next step will be a total wipe, but i need to make some room on my sdcard for backup purposes first...
If anyone has an idea to sort this out, i'm highly interested...
I'll try to get a logcat, maybe could give a hint
Edit: Virtuous sense 2.0.0 (used it with no issue since it came out, could it be a hw issue?)
Edit2 : attached logcat

Is the pin screen differant than the usual one ie white number keys? If it is that's the sim lock screen you need to call the carrier to get the code or find out the default. Or just get a new sim lol

nah it's the 4 digit pin code, i didn't lose it btw, it's still working and i can use the phone, but i have a black backlit screen whenever i want to wake the phone, and thus when i receive a phone call, i don't know who it is and i blindly press/swipe the screen to answer, because if i want to use the same trick of locking /unlocking, it doesnt work as the lock button is also used to reject a call...

Maybe rip and reinstall the phone app?

asim0 said:
I'm facing the same issue, when i try to unlock the phone (power button or trackpad) the screen lights but stays black, and the buttons are also backlit. I have to lock again with power button and unlock again to get to the actual screen.
It first happened a few days ago, and since i didn't reboot/restart in weeks i tried to reboot but the same issue comes back.
Click to expand...
Click to collapse
I have the same exact problem as this EXCEPT, it's intermittent. Sometimes when I wake the phone I get an all black but backlight screen, and other times it's fine. I'm on CM7.1.

But a superwipe and reflash will probably fix it. Also don't restore system data on TB

I know i still can use wipe data + cache + dalvik through rom manager, and i always used to superwipe before switching roms, but how can i do that now when the recovery is all blacked out?
can anyone guide me to a script or something i could do while the phone is active, to tell him to reboot to recovery and flash that superwipe?
anyway i'll try the regular wipe and keep the thread updated
---------- Post added at 02:42 PM ---------- Previous post was at 02:35 PM ----------
SuperDave81 said:
EXCEPT, it's intermittent.
Click to expand...
Click to collapse
On my side if i leave the phone locked more than 30 seconds, it happens 100% of the time; also I noticed that now the backlight blinks 2 or 3 times (1 second blinking) when locked, first a few minutes after locking, and then randomly, about 3 or 4 times per hour; I guess it's getting worse;
I've read on another thread that it could be video cable getting loose, but since mine is still under guarantee, i won't open it right now just to check, if i can't fix by wiping / superwiping (when i know how to), i'll use that guarantee, which is one month left (lucky me)
EDIT: one other thing that makes me think it's no hardware, when the black screen appears because of a phone call or a message, the ringtone and notification sound are both half as loud as they should be, this is all really strange

after backing up my data, i reflashed the rom via Rom Manager, and I wiped data and cache (which equals to factory reset) this time: the first screen that should show the pin code numpad was already a black (backlit) screen!!
Also, thinking about it, i realised that the "flash rom from sdcard" menu in Rom Manager is in fact "Flash ZIP from sdcard": the zip doesn't have to be a ROM!!
So I tried flashing a new kernel this way, also some framework modifications (extended settings, removed TP wake, etc...) they all install Ok, but still this black screen...
Also I was about to flash SuperWipeG2.zip this way, but if it doesn't fix my problem, I will be stuck with a blacked out recovery, as SuperWipe wipes everything including /system; so if anyone has an idea to tell Rom Manager to flash two zips (Superwipe then Rom) i'll be willing to try, or a script to do that;
Maybe i'll have a look of the scripts in Superwipe and in the rom, and put both zips together... don't know if it's possible?
Maybe I'll try the Superwipe alone if I can get a spare phone, just in case...
Other thing:I used the phone's gps for more than 5 hours with the screen lit, and it never flickered even once; so it's hard to believe it's a screen connection issue...

Just to keep this updated, everything i did, including superwipe didn't change this issue, so i sent it back to the technical support (under guarantee) and I got it back today; the report that came with it says the screen has been replaced; so it was hardware finally...

Hi, i have same problem.. Black screen in recovery and during the boot. When the system boots, screen is OK. Sometimes i have also blackscreen when I want to use HW keyboard. I tried 4ext, reflash older versions of CW but still the same. I can see a screen through Android Screen Monitor and I can cotrol it. But phone is blak, only backlight. Can somebody say, how to solve this issue?
So, for other, if you cant see screen, you can use Android Screen Monitor for Windows and connect phone through USB and see a screen.

G1ForFun said:
A. They don't care if its rooted.
B. You can root stock Gingerbread.
Click to expand...
Click to collapse
WAIT one minute... they don't care? where was I when this meeting took place?

I had this issue as well on a spare G2 I had.
The screen was just black but you could tell it was lit, hardware keys were lit as well.
The phone was actually my brothers and it rooted w/ CM7.
I ended up selling the phone as is on Ebay but after some research it was a failure in the hardware for the screen and I found extensive instructions on how to replace it that I didn't wish to do.
I never attempted to get it replaced and kind of wish I did now if they don't care about the device being rooted.
I purchased my G2 before he had his, and it's never had the issue so not sure what to think of it.

Saintfyre said:
I ended up selling the phone as is on Ebay but after some research it was a failure in the hardware for the screen and I found extensive instructions on how to replace it that I didn't wish to do.
Click to expand...
Click to collapse
I think I have similar issue, can you post where you found those instructions?
Thanks in advance!

http://www.youtube.com/watch?v=u-dR8CHEGjY&feature=youtube_gdata_player
Sent from my HTC Vision using XDA Premium App

I used the same tutorial to change the LCD but after I put the new its just the backlight but nothing else... I will give it another go maybe and have a look again at those ribbon cables! I guess...
---------- Post added at 10:59 AM ---------- Previous post was at 10:09 AM ----------
I found on ebay: HTC-Desire-Z-T-Mobile-G2-A7272-Slide-Flex-Cable-Ribbon
or I found also with the chassis for a bit more.
Thinking to buy this, it would be great if anyone could confirm that it would help "my condition" ?
THanks in advance!

In terms of cables, yes the flex cables are what you want.
Sent from my T-Mobile G2

Power button busted on Focus

Out of nowhere (I was actually using the device at the time), my Focus thinks that the power button is stuck down. The only way I can get the phone to turn on is when I boot into download mode (Vol up + camera) when I pop the battery in, and I have no way to turn my phone or screen off.
Once I have power, I can use the camera button to turn it on, just a minor annoyance.
So, I've got a new device coming under warranty this week, but I still want to try and fix it (or find a way to port my data). Anyone have any ideas? Spent a good portion of the weekend troubleshooting it so far, and I'm sure it is the power button. It's not physically stuck, either, so I'm not sure if an internal connection came loose or something.
I'm starting to become more interested in finding a way to port my data, as I'm out of ideas on how to fix/troubleshoot it. And by data, I mean Isolated storage for apps, and XAPs present on my device (not just Zune stuff, that's easy).

From what you're describing, the spring that pops up the power button is damaged.
This should be covered by warranty.
Another way to turn on the phone is to connect the charger (remove the battery, put it back and connect the charger). Should start straight away.
There are several threads here about backup from IsolatedStorage. But there's no straightforward method to port all your data from one phone to another. Not yet, anyway.

EnderPsp said:
From what you're describing, the spring that pops up the power button is damaged.
This should be covered by warranty.
Another way to turn on the phone is to connect the charger (remove the battery, put it back and connect the charger). Should start straight away.
There are several threads here about backup from IsolatedStorage. But there's no straightforward method to port all your data from one phone to another. Not yet, anyway.
Click to expand...
Click to collapse
Honestly, I'm not sure if it is stuck or just some circuitry that is screwed up. Was actually using the device at the time, and all of a sudden it gave me the "Goodbye.." message and that's the last time I was able to properly turn it off. I tried your boot method, with no luck.
As for the Isolated Storage, are you saying that there's actually a way for me to pull it off my old device and onto my new one? (even if it is one by one). I've tried searching a little bit, are there specific threads/utilities you're aware of? I'm supposed to get my warranty replacement device tomorrow, and was just planning on wiping my old one. If there is something I can do, that's great.
Thank you VERY much!!!!
---------- Post added at 07:32 PM ---------- Previous post was at 06:54 PM ----------
And to follow up to my earlier comment, I've found a few utilities, but none of them can seem to copy IsolatedStorage from apps downloaded from marketplace, only sideloaded XAPs.

[Q] Nexus 7 won't boot after 4.3 ota update

I just updated my nexus 7 to the 4.3 ota update and now it goes to the neon "X" screen and no further. I tried to boot into recovery and I get a pic of android on his back with a red triangle ! Above home with the words " No command" eventually leaving it on that screen it will try and boot by itself. Again it just stays on the X screen forever. How screwed am I? Is there another way into recovery or am I at "Use it for a paperweight and go buy a new one" screwed?

When it says no command try holding the up volume key then press the power key. What happens?
Sent from my Nexus 7(2012) that has zero issues.

SlowCobra96 said:
When it says no command try holding the up volume key then press the power key. What happens?
Sent from my Nexus 7(2012) that has zero issues.
Click to expand...
Click to collapse
I get the menu to clear cache, reboot, factory reset, I tried clearing cache. No work. So I tried factory reset. Done that twice now and still hangs on the "X" screen forever.
---------- Post added at 12:39 AM ---------- Previous post was at 12:04 AM ----------
Ok so quick update. I called google, they have a 24 hr number for warranty help by the way, and I was thinking I was going to get an RMA to send it in or get it replaced. The guy at google said that they were aware of the problem and that it was a "glitch" with the OTA updates. Anyway he told me that if I leave the Nexus hanging on the X screen the battery would die and then after I fully charged it back up and turned it on it forces a full boot. Not sure if it will work but Blaise with Google said that others have called with the same issue and that solved it. So I'm gonna give it a try. I will post back and let you know what happens. Crossing my fingers but not holding my breath. He shot me an email from his account and told me that if it didn't work to email him back directly and he would get the warranty process started.

OK new update. It's a good thing I didn't hold my breath. I'm still stuck on the x screen even after letting battery die and charging back up. I also just found out that I am two months out of my warranty. This sucks. Anybody figure out how to fix this it would be most appreciated.

Yotaphone 2 vol and power switches not working. Phone not charging.

Yotaphone 2 from Tinydeal, so running KitKat.
Suddenly no power switch working, no volume control, and does not appear to charge. Blank front screen. Mirror screen OK on back.
When receiving a call the main screen will light up and work. Battery is 85%.
I've read elsewhere that the tinydeal phones have been flashed (rooted?) so it's inadvisable to try a factory reset.
I can change volume with the sliders on the back screen, but the volume slider does not appear on either screen just by pushing the volume buttons.
Any ideas, or is it another case of returning it to tinydeal?

I just cant find the radio folder in C:\Program Files (x86)\yotaphone_flasher. I only have "drivers" folder there. I did all the previous steps as in the guide.... What is wrong please?

IIEDDIE said:
I just cant find the radio folder in C:\Program Files (x86)\yotaphone_flasher. I only have "drivers" folder there. I did all the previous steps as in the guide.... What is wrong please?
Click to expand...
Click to collapse
You first have to run yotaflasher and have it download a firmware. After that you will have a Radio folder in the Firmware folder.
---------- Post added at 08:53 PM ---------- Previous post was at 08:49 PM ----------
Lothor said:
Yotaphone 2 from Tinydeal, so running KitKat.
Suddenly no power switch working, no volume control, and does not appear to charge. Blank front screen. Mirror screen OK on back.
When receiving a call the main screen will light up and work. Battery is 85%.
I've read elsewhere that the tinydeal phones have been flashed (rooted?) so it's inadvisable to try a factory reset.
I can change volume with the sliders on the back screen, but the volume slider does not appear on either screen just by pushing the volume buttons.
Any ideas, or is it another case of returning it to tinydeal?
Click to expand...
Click to collapse
If the hardware buttons (volume) are not working there seems to be something wrong with your phone. This is however where the simcard is inserted. Have you tried removing the simcard tray and inserting it again? If the volume controls don't seem to work after that you phone may be faulty and it is best to return your phone as you seem to be the only one with this problem.

No, I the folder just wasnt there. Though I used the method of first flashing newest 4.4 EU firmware (which worked) and then turned on and Android automatially downloaded 5.0 update. It was ****ing scary I have to say as it took about 0,5-1 hour with phone turning on and off so sporadically that I thought that it was actually dead in between. No HW keys worked during the process (yes I freaked out) and display was turned off. At the end battery actually died even though it was connected to PC by usb. But I didnt know that so as the last resort I plugged it into charger and I got directly to 5.0. Method was actually pretty flawless but the way the phone looked was really scary. (99% of that time time it looked and behaved as bricked) - black screen no feedback from any combination of HW keys.

VirtuaLeech said:
You first have to run yotaflasher and have it download a firmware. After that you will have a Radio folder in the Firmware folder.
---------- Post added at 08:53 PM ---------- Previous post was at 08:49 PM ----------
If the hardware buttons (volume) are not working there seems to be something wrong with your phone. This is however where the simcard is inserted. Have you tried removing the simcard tray and inserting it again? If the volume controls don't seem to work after that you phone may be faulty and it is best to return your phone as you seem to be the only one with this problem.
Click to expand...
Click to collapse
Well, whilst waiting for advice from tinydeal after uploading a video to them, I left the phone alone and it took about 12 days for the back of the phone to lock, signifying that the battery had finally totally run down. I then plugged the phone back onto its charger and held the power button for about 15 seconds. Suddenly the charger light came on, then went off after about ten seconds, then came back on again. Pressing the power button again brought the front screen back to life!
So I conclude that the problem sometimes solvable with phones with a removeable battery (reboot the phone with a battery disconnection) can't be done with the Yotaphone. The downside here is that the Yotaphone battery takes so long to run down (12 days!)

I have exactly the same problem as the OP. No Sim card tho, just WiFi. I have just had the phone for about 3 weeks.

bruno00000 said:
I have exactly the same problem as the OP. No Sim card tho, just WiFi. I have just had the phone for about 3 weeks.
Click to expand...
Click to collapse
After my experience I suggest leaving wi fi on to help run the battery down.
Someone else on another website suggests holding the power button and both volume buttons for about 15 seconds to force a reboot.... but that didn't work for me.

I did a hard reset, but no difference, except unlocking the rear screen is easier now (?). I'll let the phone run down as suggested...
Lothor said:
After my experience I suggest leaving wi fi on to help run the battery down.
Someone else on another website suggests holding the power button and both volume buttons for about 15 seconds to force a reboot.... but that didn't work for me.
Click to expand...
Click to collapse

Hello, I have the same problem. Suddenly vol up, vol down and power button stop to work. But if I hold them together (vol up or down with power) then they work. So it seems like the software problem for me.
I have Android 4.4.3
update: I flashed my yotaphone to 5.0 and now everything works fine!

Draining battery solved it for me!
As per the title. My keys would not work. I let the phone run until the battery died and now they work again.
Flashing different firmware didn't help me...
I have a CN YotaPhone 2 from Gearbest

How do I remove ransomware off of my phone? ASAP

So I was recently downloading an app and installed it, it turns out it was an FBI ransomware app. It says I have to pay $500. I cannot boot into safemode, restart, shutdown, or anything. I cannot use the back button or any button at all. Is there any way to remove this ****ing thing? It's giving me panic attacks and I am scared ****less.

P.S: I don't mind factory resetting or losing any files or contacts or anything, as long as I get rid of it.

The FBI doesn't ransom ware any phones.
---------- Post added at 04:46 AM ---------- Previous post was at 04:44 AM ----------
You are getting played. Factory reset the phone and get on with yourife.
ALSO QUIT PIRATING APPS. They only cost like $1 just pay for them and avoid the viruses.

ShrekOpher said:
The FBI doesn't ransom ware any phones.
---------- Post added at 04:46 AM ---------- Previous post was at 04:44 AM ----------
You are getting played. Factory reset the phone and get on with yourife.
ALSO QUIT PIRATING APPS. They only cost like $1 just pay for them and avoid the viruses.
Click to expand...
Click to collapse
I am very aware the FBI doesn't do that, it's just what the virus is showing. I would love to do factory reset, however I can't access anything or do anything other than be in that ransom ware page. I cannot restart, shut down, or do anything. I cannot use the back button or any button. And if I can't restart, means I can't get into safe mode or developer mode. Is there anyway we can do anything without any of these?

Physxtron said:
I am very aware the FBI doesn't do that, it's just what the virus is showing. I would love to do factory reset, however I can't access anything or do anything other than be in that ransom ware page. I cannot restart, shut down, or do anything. I cannot use the back button or any button. And if I can't restart, means I can't get into safe mode or developer mode. Is there anyway we can do anything without any of these?
Click to expand...
Click to collapse
Hold down the power button and both volume up and down. The phone should reboot. As soon as it powers down hold down volume up, power button and home button to boot into recovery and factory reset the device.
If that doesn't work boot into download mode using the same process but volume down instead. Then use smart switch or Odin to refresh the firmware.

ShrekOpher said:
Hold down the power button and both volume up and down. The phone should reboot. As soon as it powers down hold down volume up, power button and home button to boot into recovery and factory reset the device.
If that doesn't work boot into download mode using the same process but volume down instead. Then use smart switch or Odin to refresh the firmware.
Click to expand...
Click to collapse
THANK YOU THANK YOU THANK YOU! Really appreciated, mate.