Develop Bugs

Phone always has a white screen, but seems to work

Hi Forum,
I got a dash with the WM 6.1 from this great forum.
Somehow since yesterday the screen turned completely white
There was no physical impact on the phone what so ever...
When I turn the phone on, the screen is all the time white... but the phone is still working since the alarm is still ringing....
I've tried already the following:
- took the battery out for over 6 hours and tried again
- with and without sim/sd card
- to reset the phone but with no success since I cant see anything (2 softbuttons, powerbutton etc.)
- putting WM 6.5 with no success with the Error 270
- pressing and holding any button
- tipping the jagger for 3 times
- and finally hitting the phone
All these steps didnt use me anything...
I'd be gratefull for any sudgestions
Maybe the screen is just damaged and its not because of the software...
thanks a lot,
RedDot69

Hard-reset will be best option and can be done blind since it's button sequence as known then green key, i knopw that peeps have done it blind and with you spending enough time it will be sorted... The other option is bootloader and flash your stock ROM as won't get an error 270

thanks for the fast reply.
ok about the hard reset.
I hold both buttons beside green and red button then while holding i turn on the phone (power button more then 3 sec.) after it turned on i let go of the buttons and press the green button (I pressed it a several times). What after that?? will everything happen automatically??
if yes then the hard reset wont help since its still white...
unfortunately I dont have the original ROM anymore (WM5).
Do you know where I can get it??

Ok I guess I managed to hard reset this thing.
Unfortunately with no success
can anyone help?
will the problem be gone if I change the display?

RedDot69 said:
Ok I guess I managed to hard reset this thing.
Unfortunately with no success
can anyone help?
will the problem be gone if I change the display?
Click to expand...
Click to collapse
Can you sync with your PC? That's something that you haven't state in your original post.

From what you have posted in the first post, looks to me like your phone has suffered water/moisture damage. Classic white screen, nothing shows, display turns off after default timeout seconds, phone functions smoothly. For this to occur, you dont have to dunk the phone in water, phone in pocket when exposed to light rain, snow will do it.
If this is the case, the first thing you can do to salvage the phone is to remove the battery, otherwise the charge will short circuit more, leading to irreparable damage.
Second thing, try and keep it open for 24 hours or more and try ONCE more, just once, if the moisture has been evaporated. If not, remove battery again.
Next you will need to find a service center where they will dismantle the phone and physically air dry the PCB, and hopefully if it hasnt already shorted, it will come back to life.
The cost for this could vary from minimal to astronomical, depending upon which country you are in.
Do not take my words for granted, do a google for phone water damage, find out if those are your exact symptoms.
All the best.

gmaniac2008 said:
Can you sync with your PC? That's something that you haven't state in your original post.
Click to expand...
Click to collapse
yes I can. I already saved the contact list The phone is perfectly working beside the white display...
@ ccpraveen
I really dont think thats the case. Since I was sleeping on the couch, the phone's alarm went of like at 11 and it was all ok, then 30 min later the screen was all white
And the night before I left the phone at home...
Bringing the phone to some service center is out of question, since I live in Germany... If possible, I'd have to repair it my self...
By the way the Display time out works too... Somehow I got the feeling that it wouldnt use me anything to change the display

please, can no one help

RedDot69 said:
please, can no one help
Click to expand...
Click to collapse
install this on your computer http://www.mymobiler.com/
it will silently install on your s620 when it syncs with activesync and you will be able to view your screen from your computer monitor
if everything works buy a new lcd from ebay and replace it because its probably broken

--- sorry didnt want to post ---
Please skip this reply and read the next (cant delete this anymore)

ducamie said:
install this on your computer http://www.mymobiler.com/
it will silently install on your s620 when it syncs with activesync and you will be able to view your screen from your computer monitor
if everything works buy a new lcd from ebay and replace it because its probably broken
Click to expand...
Click to collapse
thanks a lot for the very usefull link
I installed the programm and I can see my display on my monitor
Then I hard reseted the phone
Installed WM6.5 from the forum successfully
But the display is still all white
If anybody thinks that the problems any way not from the display please do tell.

RedDot69 said:
thanks a lot for the very usefull link
I installed the programm and I can see my display on my monitor
Then I hard reseted the phone
Installed WM6.5 from the forum successfully
But the display is still all white
If anybody thinks that the problems any way not from the display please do tell.
Click to expand...
Click to collapse
My impression is that you have a hardware problem, maybe your screen has something loose. If you state that you will fix it by yourself, you can read the sticky on how to take apart your dash.

There are also power management settings that will turn the display white, however if it is white all the time, then it's probably hardware. Loose connections does sound possible. I'd check that first

You can try the following:
*- COMPLETELY disassemble your phone.
*- Take the PCBs apart on a table or something.
Then... take an hairdryer!!!
You have to dry your PCBs: take a PCB in your hand and do the work.
Be aware of not using TOO HOT air, or you'll melt all.
If it doesn't work, try to dry your LCD.
Doesn't work?
Okay, then the only 2 possible fixes are:
*- Replace the LCD Flex Cable if not integrated in the LCD.
*- Replace the LCD.
Hope that you'll get your phone fixed and running

Boot loop. Can't access download or recovery mode.

Hello all,
I'm got an I747 that one day just decided to stop working on me. I was running stock rooted firmware and have never tried custom roms.
The phone repeatedly tries to boot up and then shut down. I can't ever get pass the Samsung logo.
The same thing happens when trying to access recovery or download mode. I see the initial download/recovery screen and then the phone shuts off.
Is the motherboard toast?
My friend has an I747 as well but it has been blacklisted. Are there any parts I can swap from one another to get either one of them working?
Any help or input is appreciated.

r i c h said:
Hello all,
I'm got an I747 that one day just decided to stop working on me. I was running stock rooted firmware and have never tried custom roms.
The phone repeatedly tries to boot up and then shut down. I can't ever get pass the Samsung logo.
The same thing happens when trying to access recovery or download mode. I see the initial download/recovery screen and then the phone shuts off.
Is the motherboard toast?
My friend has an I747 as well but it has been blacklisted. Are there any parts I can swap from one another to get either one of them working?
Any help or input is appreciated.
Click to expand...
Click to collapse
Does removing & reinserting the battery (with no buttons pushed) trigger the restart behavior?

pc103 said:
Does removing & reinserting the battery (with no buttons pushed) trigger the restart behavior?
Click to expand...
Click to collapse
Yes, just by inserting the battery the phone vibrates and begins to start up.
Once the Samsung logo appears it turns back off again.

r i c h said:
Yes, just by inserting the battery the phone vibrates and begins to start up.
Once the Samsung logo appears it turns back off again.
Click to expand...
Click to collapse
Indicates Samsung stuck power button syndrome. A lot has been posted about this.
I would start with warranty service if available.
If not, search a lot & choose solutions carefully.
It happened once with my Captivate & teardown & blowout cured it,
though I never observed the physical defect (only the symptoms).
I have used apps to reduce my use of the button ever since, with GS2 & GS3.
Approach teardown with extreme caution if you are not experienced.
Gently tapping a table edge with the upper right has worked for some.

pc103 said:
Indicates Samsung stuck power button syndrome. A lot has been posted about this.
I would start with warranty service if available.
If not, search a lot & choose solutions carefully.
It happened once with my Captivate & teardown & blowout cured it,
though I never observed the physical defect (only the symptoms).
I have used apps to reduce my use of the button ever since, with GS2 & GS3.
Approach teardown with extreme caution if you are not experienced.
Gently tapping a table edge with the upper right has worked for some.
Click to expand...
Click to collapse
Thanks for the advice. I did not know this was a common problem.
Unfortunately I am out of warranty so I will try to fix this myself.
I have already taken apart the phone before so I am fine with tearing it down again.
What do you mean by blowout? Do I physically try to tap the power button of the mother board on a table edge?

r i c h said:
Thanks for the advice. I did not know this was a common problem.
Unfortunately I am out of warranty so I will try to fix this myself.
I have already taken apart the phone before so I am fine with tearing it down again.
What do you mean by blowout? Do I physically try to tap the power button of the mother board on a table edge?
Click to expand...
Click to collapse
Push out any dust or debris outward using forced dry air.
The gentle tapping of the button edge area is a pre-disassembly alternative.
Many opinions, experiences & videos have been posted. It's worth it to sample some first.

[Q] Endless reboot loop even when trying to enter recovery

One beautiful day the phone just restarted from itself. (wasnt really shocked though) After that it entered again into a boot loop, Im saying again because it happened once before and i noticed it was the SD Card and I just had to format it. So far so good, but now it doesnt matter if I pull out the SD Card or SIM, even battery... once ive put the battery the phone starts booting from it self and restarts everytime on a different place, like samsung logo, CM logo, CWM recovery, download mode.. it just cant stay on one place so i can choose an option. Only once ive managed to do a cache and dalvik wipe, also didnt help. Keeps rebooting and rebooting. Ive tried different ways of booting, with USB cable, with the recharger adaptor and without them. Left it for a whole night without battery, didnt help. I cant even manage to flash the stock ROM again, still reboots. I thought the power button was stuck or something, tried moving it arround but also didnt help. If you ask how many time Ive flashed the device... well perhaps countless, about 40 times counting the stock firmware. (maybe this number for some other maniacs is little, but now i see it like too much, because im kinda attached to this phone, the previous HD2 suffered a lot more xD) So guys my question is, do you have any suggestions? Ive searched the internet to check if the symptoms are close to hard brick but... didnt really saw any identity.

So.....
Normal boot.....it reboots, shuts off reboots.......?
Recovery mode.....reboots, shuts off, reboots.......?
Download mode.....reboots, shuts off, reboots......?
Battery insertion.....reboots, shuts off, reboots.......?
Same sequence every time?
Irrespective of which of the above scenarios is taking place?
If you just sat and watched it without pressing any buttons, will it endlessly reboot, shut off, reboot?.....
During this cycle, does it get to the same point in the boot process before restarting?.....
Sent from my GT-I9100 using xda app-developers app

keithross39 said:
So.....
Normal boot.....it reboots, shuts off reboots.......?
Recovery mode.....reboots, shuts off, reboots.......?
Download mode.....reboots, shuts off, reboots......?
Battery insertion.....reboots, shuts off, reboots.......?
Same sequence every time?
Irrespective of which of the above scenarios is taking place?
If you just sat and watched it without pressing any buttons, will it endlessly reboot, shut off, reboot?.....
During this cycle, does it get to the same point in the boot process before restarting?.....
Sent from my GT-I9100 using xda app-developers app
Click to expand...
Click to collapse
Thank you! I thought nobody will answer. It reboots right after passing 3 to 5 seconds, sometimes on the CM Samsung splash, sometimes on the spinning CM circle(boot loading image), when i succeed entering CWM or download mode reboots again. I cant boot it normally and reach the home screen. I read something that it could be from the kernel boot code, im using CM 10 (if im not guessing wrong).

I've answered a number of threads in the XDA W forum where members were experiencing similar issues to yourself. I doubt it's software related as during access to download mode and recovery mode , the phone isn't even using the "main" system software and kernel....these modes use their own independent kernel and system (it would be HIGHLY unlikely that two separate systems and two separate kernels are suffering from the same fault).
If all of the symptoms I wrote about in my original reply apply to your phone, then it all points towards a faulty power button.
As I understand it, Samsung uses a type of button commonly referred to as "temporary push to make" which means that when you push the button, two contacts are bridged to make an electrical connection but when you release the button the contact is broken. Under normal circumstances, this "make, break" sequence will start a normal boot sequence. Under normal conditions, long pressing this button again will begin the shutdown process. Now assume for a moment that the button has become damaged....where this contact that is meant to be momentary, has in fact become permanent......the result would be a phone that will attempt to start up and shut down in an endless cycle....basically, YOUR phone........
Sent from my GT-I9100 using Tapatalk

Yeah, I also thought that as a reason but discarded it quickly because the button doesnt have any problems when pushing it. I mean it freely comes back when pushed and i can also freely push it without problems. Also discarded that problem because i thought the button cant stop the booting cycle while booting, but it seems like it can. Thanks for all the answering I will try fixing it and will report as soon as possible.

The plastic button is separate to the electrical part I described....so it is entirely possible for the part you normally touch to *seem* to be working as it should.....only for it to work against the faulty electrical part........
And yes, that type of fault IS caused by the permanent contact of a faulty electrical button. Anybody who has a normally booting W (as I do) can re create this fault simply by pressing and holding the power button......the phone WILL enter a boot/shut down/reboot cycle for as long as the button is held........
The same condition can be re created on my S2 in exactly the same way as well.....
Sent from my Infected KitKat bar.....

Well.. bad news.. i've managed to disassemble it, tried to see whats wrong with the button (not the plastic one), tried moving it arround, nothing seems to be damaged, still stable at one place, also tried booting the phone 3 times without any covers and the result was the same...
Perhaps i should drive it to service.

Check your date of purchase.....Samsung phones have a two year warranty.......
Sent from my Infected KitKat bar.....

Well bad luck here also, i got it almost brand new from England and I'm not from England. I bought it over online shop sold as a second hand long time ago, it was just a matter of time to damage him. Thanks anyway for all the help, I'll see what i can do with the service.

Bad luck mate.....word of caution though.....as you've found out, the button is soldered directly to the motherboard, Samsung's "modus operandi" seems to be rather than attempt to repair the button, simply replace the entire MB........for a phone that is outside warranty, this will have (erm) "cost implications" lol......basically they like to charge as much as they can in situations like these.....eg/ board replacement when button repair would be enough.....
Sent from my Infected KitKat bar.....

keithross39 said:
Bad luck mate.....word of caution though.....as you've found out, the button is soldered directly to the motherboard, Samsung's "modus operandi" seems to be rather than attempt to repair the button, simply replace the entire MB........for a phone that is outside warranty, this will have (erm) "cost implications" lol......basically they like to charge as much as they can in situations like these.....eg/ board replacement when button repair would be enough.....
Sent from my Infected KitKat bar.....
Click to expand...
Click to collapse
True, my phone suffered the Power Off Loop as you may know from my previous thread. I decided to send my phone to a couple of repair shops and they said that the phone "cnt be repaired". i thought they knew about the change of MB but no. So rite now, my Galaxy W is in the grave ...
Sent from my GT-S6500 using xda app-developers app

i had encountered this issue with my galaxy wonder today and would like to seek for solutions over the internet. regardless that i also checked the button by disassembling the covers and separated the plastic button with the one on the board and tried to boot it but it still the same.
as most of you guys experienced this issue, what would you guys suggest me to do with my phone? i wish to save this phone for sentimental reason. would change the button DIY-ly is worth it? is it available for me to get the parts?
or did you guys manage to get a better solution?
thanks!

[Q] Samsung Ace II will not turn on

Hello, new here and I know nothing about rooting nor have I rooted my phone but after looking all over the net I have come here in hopes of finding some tech wizards that can help me.
The Problem:
Turned phone off and a few hours later I tried turning it back on but it only shows the screen with model number and Samsung under it. It shows for a few seconds then the screen goes black and keeps looping like this. I have not rooted or anything. Not dropped in water ( water square is pink though). Phone shows no water damage or corrosion after opening.
What have I done?
I tried booting in recovery and download mode but i have never done it before and I was not successful at getting any other screen besides the model number Samsung screen.
I have tried a different battery after spending some time at the mall (no on carries it any more as it is no longer made) different battery did nothing. Repair guys suggested it may be the button sticking and said hey could clean it for $25. Instead I went home searched the web and disassembled my phone. I cleaned the button areas on the inside of the case and the contact on the inside attached to the circuit board. I have reassembled and it still does the same thing.
After more research I found a video saying to actually remove the internal button from the circuit board to stop the loop (which will leave me with no power button) I have not tried this as I am not that bold (yet).
I am wondering if it is a software problem that can be fixed by using Odin and installing the stock firmware but I just have not found a proper guide that makes enough sense for me to actually try. I don't want to waste my time with something I have never done and make things worse.
I have downloaded Odin and firmware from sammobile but that is about as far as I can go without some hand holding....
Thanks for reading my story any help would be much appreciated.

Fishheadman said:
Hello, new here and I know nothing about rooting nor have I rooted my phone but after looking all over the net I have come here in hopes of finding some tech wizards that can help me.
The Problem:
Turned phone off and a few hours later I tried turning it back on but it only shows the screen with model number and Samsung under it. It shows for a few seconds then the screen goes black and keeps looping like this. I have not rooted or anything. Not dropped in water ( water square is pink though). Phone shows no water damage or corrosion after opening.
What have I done?
I tried booting in recovery and download mode but i have never done it before and I was not successful at getting any other screen besides the model number Samsung screen.
I have tried a different battery after spending some time at the mall (no on carries it any more as it is no longer made) different battery did nothing. Repair guys suggested it may be the button sticking and said hey could clean it for $25. Instead I went home searched the web and disassembled my phone. I cleaned the button areas on the inside of the case and the contact on the inside attached to the circuit board. I have reassembled and it still does the same thing.
After more research I found a video saying to actually remove the internal button from the circuit board to stop the loop (which will leave me with no power button) I have not tried this as I am not that bold (yet).
I am wondering if it is a software problem that can be fixed by using Odin and installing the stock firmware but I just have not found a proper guide that makes enough sense for me to actually try. I don't want to waste my time with something I have never done and make things worse.
I have downloaded Odin and firmware from sammobile but that is about as far as I can go without some hand holding....
Thanks for reading my story any help would be much appreciated.
Click to expand...
Click to collapse
Try this - Press and hold Volume up + Home + Power buttons together a few seconds, you should get recovery mode. And then find factory reset.

garak elim said:
Try this - Press and hold Volume up + Home + Power buttons together a few seconds, you should get recovery mode. And then find factory reset.
Click to expand...
Click to collapse
Thanks for the reply. I have tried this many times and tried again after reading your reply. This should work fairly fast from what I understand right?
My phone is a virgin mobile phone (Canada) is it possible they have locked out recovery / download modes?
When I try to start in recovery nothing happens at all. Screen does not light, phone does not vibrate. Again I have never tried this until now so I don't know if the phone ever booted into these special modes when it was working.

Fishheadman said:
Thanks for the reply. I have tried this many times and tried again after reading your reply. This should work fairly fast from what I understand right?
My phone is a virgin mobile phone (Canada) is it possible they have locked out recovery / download modes?
When I try to start in recovery nothing happens at all. Screen does not light, phone does not vibrate. Again I have never tried this until now so I don't know if the phone ever booted into these special modes when it was working.
Click to expand...
Click to collapse
It's weird. I found something on page hard-reset.com. I cannot post link here now. I put "samsung ace2 recovery" into google and it was on first page. It's hard reset key combination. Try it.

When you plug the phone into the charger, do you get the battery charging status screen?

garak elim said:
It's weird. I found something on page hard-reset.com. I cannot post link here now. I put "samsung ace2 recovery" into google and it was on first page. It's hard reset key combination. Try it.
Click to expand...
Click to collapse
Forget my previous post. I was wrong. I try find another solutions.
Is your battery fully charged?

I need help to boot pls (broken button/old rom)

Hi,
I've got an old OP3 wich my son is using. The problem is that the power button is broken/not working. Last update was made years ago (maybe 4 or 5..), and there is "Tipsy rom" installed (Android 7.1.2 ).
So when battery is empty for instance, to put the phone on I had to put the phone on charge, and then the screen(s) appear(s) that it should "boot in 5 sec" (see attachments). It did work before, but doesn't anymore... ! Don't know why.. ?!
I've searched how I could do but I don't find an answer.
To be clear : adb is enabled but the phone isn't recognized (or only while in recovery) so I can't use code lines (I also tried in different usb slots / on different pc). And when I put it on charge, I still do have the boot screens that say "if no key pressed : your device will boot in 5 seconds", but instead the charge screen appears (with battery charging). I've tried to disconnect the battery, the volume button, the motherboard.. with always the same result.
Could someone please be kind enough to give me advice on how to boot the phone ? It'd be really appreciated !! Thanks.. !

It is difficult to assess the situation without carefully checking the operation of the switches, whether current is passing or not. If they are not damaged, the cause may be a defective electronic button controller on the motherboard.
Since it is currently not self-starting, there could be more causes.
I suggest replacing the switches with working ones. This will be the first,cheapest and maybe the only option for diagnosis.

ze7zez said:
It is difficult to assess the situation without carefully checking the operation of the switches, whether current is passing or not. If they are not damaged, the cause may be a defective electronic button controller on the motherboard.
Since it is currently not self-starting, there could be more causes.
I suggest replacing the switches with working ones. This will be the first,cheapest and maybe the only option for diagnosis.
Click to expand...
Click to collapse
Thanks for your reply !
I didn't test if current goes through because the battery must be get out to check it (I removed batteries before and had "bent" ones often). So you're right I don't know if it's the button switches/cable, or worse (contact/motherboard...).
That said, I would like to try to find a way to "force" boot, for exemple I've tried to hold volume button while/between/after boot screens appear, but yet I always come on the screen wich allows to choose from "power off, restart, recovery, fastboot mode"... (with volume button). I don't understand why it rebooted before (like the screen says "after 5 seconds") as it worked well before but refuse to now..
I appreciate your input, many thanks ! If you've another idea... ? . Thanks anyway !!