I have just received a s4 with a really confusing problem . When you power the phone on normally it displays a weird semi solid green screen but when you boot into download mode everything displays perfectly. Also while phone is off if you connect charger it displays the battery icon perfectly. Phone is 100% stock dont know what rom/baseband version was installed. Green screen also in recovery mode. Phone does not have usb debugging enabled nor is it rooted. Can anyone help?
Download Mode says
ODIN MODE
PRODUCT NAME SCH-I545
CURRENT BINARY Samsung Official
SYSTEM STATUS Official
KNOX KERNEL LOCK 0x0
KNOX WARRANTY VOID 0x0
CSB-CONFIG-LSB 0x30
WRITE PROTECTION Enable
eMMC BURST MODE enabled
If you're able to get into download mode, download the latest stock firmware and install it to see if that corrects the problem. There should be a link for the stock firmware in the Verizon Galaxy S4 forums, along with other aids that may be of use to you. Installing the firmware is a must, because it will either correct the problem you're having, or it will reveal the problem to be deeper, and likely hardware related.
In the unlikely event that the stock firmware is not available on the forums, you can get a copy from either sammobile.com or samsung-updates.com.
I dont know what version was previously installed I tried flashing twrp via odin it comes back as failed because of a auth error. I think the bootloader may be locked if it isnt I dont want to upgrade only to learn bootloader was previously unlocked and I just locked it up by updating. It seems to me if this is a hardware related problem I would think the phone would be green screen in download mode and while charger plugged in? Any suggestions on which android version to try first?
You clearly didn't read my previous post. That pisses me off, because now I'm having to repeat myself when I should NEVER have to.
If you want to brick the S4, then continue doing what you were doing. Otherwise, pay attention, because at no point did I ever mention downloading and installing TWRP. I did however mention downloading and installing the STOCK Verizon S4 ROM from the Verizon S4 forums. You will use Odin to install the ROM. If the Verizon S4 forums do not have a link to the stock Verizon S4 ROM, you are to download the latest copy of the ROM from either sammobile.com or samsung-updates.com. It doesn't matter one whit what was on there before, because by installing the stock ROM you were supposed to have downloaded, you will have the S4 at a known starting point so you can truly diagnose the problems it may have.
AT&T and Verizon bootloaders are locked, thus you cannot just install a recovery and expect it to work. Installing a stock ROM however will work since all the components are verified by Verizon. In installing the stock Verizon S4 ROM through Odin, you will make sure you are using a proper cable, do not have the S4 connected through a hub, will make sure the Samsung USB drivers are installed (available at Samsung's website), and either do not have Kies installed, or have Kies disabled.
Sorry I have flashed the latest official verizon firmware and odin said pass, everything went perfect. Phone restarted and again hazy green screen returned. Still cannot veiw anything in recovery or normal mode, safe mode does not help either. Download mode and battery charging still show up perfectly fine. Any help would be greatly appriciated.
It's hard to think of this as a hardware issue, but I believe you have one. As strange as it may seem, the issue is not with the screen itself, but the GPU.
Using Windows equivalents, Download Mode is "Safe Mode with Command Prompt" while Safe Mode is just like Windows' "Safe Mode". "Safe Mode with Command Prompt" dumps you to the command line, i.e. DOS. It doesn't need a GUI so it doesn't have drivers loaded to support it. "Safe Mode" has a GUI so it has to load drivers to support that.
On the S4 the concept is similar, only the drivers are called "libraries". Download mode doesn't use a GUI as it's part of the bootloader, so it doesn't need the GPU, thus it doesn't need the GPU library. This is why download mode functions. The other modes all have a GUI, which requires the GPU and a library for the GPU loaded. Since the GPU has failed you get the green screen instead of what you should see. The library itself isn't the culprit because if it were, loading a new ROM as you had would have fixed the problem. The screen isn't the culprit because the screen works correctly in download mode. If it were the screen, the green would appear in Download Mode as well as the other modes. Therefore the GPU is most likely the problem.
Unfortunately, that means a new motherboard, on top of trying to remove the glass for replacement.
PROBLEM ALMOST FIXED!!.. Well kind of, i seperated the broken glass from the screen and placed the phone in the freezer. An hour or so later i pulled the phone back out of the freezer and switched it on everything worked perfect i switched on usb debugging and rooted the phone using towelroot and safestrapped it. when i updated supersu i had to reboot the phone and then again green screen i also noticed the phone had gotten really hot. I tried the freezer trick again and the phone turned on like normal no green screen. Does anyone know what maybe causing this issue???
Thank you very much for all the help and info you have given me i really do appriciate it
Bad GPU, as previously stated, though there are two other possibilities I can think of. The first is that GPU has a bad connection to the motherboard that manifests when heated. Or else the motherboard has a stress fracture that manifests when heated. The latter has happened with other devices but is not common. A solder reflow of the GPU could cure the former problem.
Before I give the reflow a shot I wanted to mention another piece to this puzzle. When the phone is working fine as long as the screens backlight is on the phone will display everything correctly as soon as it turns off and you turn it back on green screen. It doesn't matter if you wait two minutes or 20 minutes. Dont know if thathelps narrow down culprit
It doesn't narrow things down any.
the solution
you need to change your battery than you install the firmware using odin than you download antivirus. :good:
Desperation has set in and there is no light at the end of the tunnel in sight. My Galaxy S5 (GT-I900I) has been running xstresolite 2.2 completely fine for several months and with no new app installations or irregular behaviour, it suddenly began to soft reset constantly and require me to unlock my sim card with the code I was given. Only problem is that it gave me enough time to enter the code before restarting and repeating the process. I decided to try reflashing the ROM which instead has sent me into a series of bootloops whereby I no longer have any functionality besides recovery/download mode.
One particular attempt was able to get me through to having a clean install and use my phone again but I was met by a "MTP (and) System UI has stopped working" message and therefore had no notification bar and use of soft keys. Reflashing the exact same way once again has let me into more bootloops.
Normally I would simply download another package and reflash but as the title suggests I don't have access to a PC as I'm in the midst of travelling Eastern Europe so it is critical I have a functional phone.
I would provide more information on my device but I'm not able to access any such information as I'm in a bootloops. Any help would be seriously appreciated. Thanks.
So I've only had this phone for about a week now and just tried to install TWRP on my phone with the TWRP app from google play once rebooted 'm now stuck on a screen that says:
SECURE FAIL: KERNEL
Start Up Failed
Your device didn't start up successfully. Use the Verizon Software Repair Assistant on a computer to repair your device.
What do I do?!
Things I've tried to do:
I tried hooking it up to my computer but it doesn't detect it but makes a sound when connected?
Even though I'm on fully stock rom but my device is rooted with kingroot i planned on using ODIN to go back to stock rom just to see if anything would happen but still wouldn't detect my phone, I'm lost and miss my baby, it's the only phone I have right now currently and I need it for work.
My phone is on 5.0.1 btw
Do you have kies and the drivers installed?
Hi all !
I have a Samsung A8 (model SM-A800F) which was working great. I ran Kingo Root to try to install Youtube ad free. The next time I restarted it, it didn't load, and restarted in an endless loop to where "Samsung" logo appears (then restarted again). I booted into System Recovery and chose to reset to factory, but it didn't help. Then I tried flash it using Odin in Download mode. I installed the Windows drivers, downloaded the 6.0.1 firmware for Vietnam (where it was purchased), loaded the file into the AP field, and once verified clicked Start. The progress was frozen when reaching mid-way every time I tried, until it said "an error occured while updating the device software. Use the Emergency recovery function in the Smart Switch PC software"...
I downloaded Smart Switch and installed in Windows, but the drivers were not able to install correctly, and failed on the component referring to the ID or something... while Modem driver was installed correctly and the phone appeared in Device Manager. Smart Switch didn't recognize my phone and said "unsupported device".
Now I cannot get the phone stay constantly ON, and the screen shuts down and loads in an endless loop, to the "Error occured" screen... When trying to boot to the ODIN Download page, it loads, I press UP for Continue, and then it again shuts down and loads to "Error Occured".
I tried to charge over night but it didn't help. It does the same thing when the phone is connected to the charger...
However it seems that by IMEI it is sill under warranty. I'm not sure if I voided it :/
Here's what the Download mode page says:
ODIN MODE
PRODUCT NAME: SM-A800F
CURRENT BINARY: Samsung Official
SYSTEM STATUS: Official
FAP LOCK: ON
Secure Download: Enabled
KNOX WARRANTY VOID: 0
AP_SWREV: 1
Would appreciate any help, this phone is almost new but now it's dead :/
have u try use kise to repair ur phone
Hi,
I solved it, see this thread:
https://forum.xda-developers.com/ga...lease-help-t3622059/post72699428#post72699428
Thread closed, this is a duplicate of this one: https://forum.xda-developers.com/samsung-a-series/help/killed-phone-warranty-please-help-t3622059
Wood Man
Forum Moderator
I have a samsung galaxy a6 tab and it has knox which prevents me from installing apps , prevents usb debugging and factory reset .. i cant even go into the download mode , cant deactivate it from being a device administrator,, is there is any way to remove it or factory reset the device to be able to use it?
yahyah96 said:
I have a samsung galaxy a6 tab and it has knox which prevents me from installing apps , prevents usb debugging and factory reset .. i cant even go into the download mode , cant deactivate it from being a device administrator,, is there is any way to remove it or factory reset the device to be able to use it?
Click to expand...
Click to collapse
Pretty much all Samsungs have Knox. I do have the knox cleaner/reset for this device but for some reason I don't think that's what you need. If you can't get into download mode you can't flash in the Knox reset. From your description it sounds more like you are in some kind of FRP Binary lock. Or, are you sure you're not in Demo mode? Let me ask if you can use the device in any way?Are you in a bootloop. A bootloop is when you can turn on the device but it doesn;t load farther than the LOGO screen. If you turn it off can you access Recovery or Download mode (whether or not you can use it)? Are you getting redirected from them to another screen? Can you describe what you can do? Any and all symptoms you can list could help define your difficulty.
I'm having the same issue although mine is much worse it's from an app called netspark mobile it has device owner provisions and I cant do anything after disabling its accessibility options windows keep popping up continuously telling me to renewable them which will just close all windows and lock me out whenever I try to deactivate the device admin which is greyed out
yahyah96 said:
I have a samsung galaxy a6 tab and it has knox which prevents me from installing apps , prevents usb debugging and factory reset .. i cant even go into the download mode , cant deactivate it from being a device administrator,, is there is any way to remove it or factory reset the device to be able to use it?
Click to expand...
Click to collapse
Also me the same issue but tab s6 lite. Did anyone solve this ??.
It sounds to me like what each of you is talking about is third party security software sometimes used by businesses to prevent employees from installing unauthorized apps and to prevent people from seeing company data on lost or stolen devices. The only way I know of to remove that type of software is to have authorization from the original owner to have the software maker remove it.