(Sorry for my bad English) I tried to downgrade thru HiSuite and Firmware finder, it “successfully downgrade” but now my phone doesn’t react to anything, doesn’t rumble, screen doesn’t turn on, notification led doesn’t blinks, only fast boot detect it, but my bootloader is locked, i can’t reboot or anything. Any ideas? Thanks anyway
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So first off, here is what i know about my device.
Samsung Galaxy S4
SCH-I545VRUGOC1
I installed TWRP because i guess i had no idea what i was doing, and locked myself out of my recovery mode, then tried to fix that by flashing the stock rom which didn't work either.
when booting this is what happens.
Recover - Nothing
Odin/Download mode - Works.
Power only - boots to black screen that says "Samsung Custom OS" then the screen turns black, blue LED comes on and it doesn't restart or turn off, it just seems to be frozen. (I expect this is because i've attempted to flash multiple times thinking the issue was my cable connection)
no idea what to do now, can't boot can't think straight since i've been at it for hours finding things on these forums but nothing seems to work through odin.
Can't download VZW Repair assistant (no online link, and phone wont recognize through my pc)
samsung kies wont recognize it either.
Help?
Need any info, ill be at my computer for a few hours trying to hash this out.
-Don't care about my data on the phone, it's replaceable.
Thanks.
Fixed it Via SmartSwitch
Was able to recover all of the aforementioned.
Got this Xiaomi from gearbest with miui 8.2, y unlock bootloader, install twrp and flash to miui 8.5 stable. Everything was fine, almost a week since i flash, install apps, wifi, calls, youtube, charge everything seems ok. But today he was no showing me nothing on screen, black, sounds and the system to be fine because i can hear when i touch icons or setting etc. I restart and turn off nothing, one time show me logo mui but just once. I try to enter bootloader menu and twrp as well and black screen still present. On the fastboot cmd menu it appears, but no screen, even i turn off and charge to see if the battery shows and nothing, it charge but not shows the icon.
Is a problem of factory or software (flash twrp)?
Kenshin1870 said:
Got this Xiaomi from gearbest with miui 8.2, y unlock bootloader, install twrp and flash to miui 8.5 stable. Everything was fine, almost a week since i flash, install apps, wifi, calls, youtube, charge everything seems ok. But today he was no showing me nothing on screen, black, sounds and the system to be fine because i can hear when i touch icons or setting etc. I restart and turn off nothing, one time show me logo mui but just once. I try to enter bootloader menu and twrp as well and black screen still present. On the fastboot cmd menu it appears, but no screen, even i turn off and charge to see if the battery shows and nothing, it charge but not shows the icon.
Is a problem of factory or software (flash twrp)?
Click to expand...
Click to collapse
If software was the cause, it will be easily fix after resetting/clean flashing.
Since the phone still detecting from PC, use this to format/clean flash your device through fastboot and see if it fix.
On the other hand, those problems you've indicated seems to be a serious hardware issue (LCD/Display related one). Still got that warranty? ye? You could bring the phone to nearest xiaomi service centre and have it checked.
I am trying to get a Huawei Y6 2015 (I believe the model is SCL-L04) to work again. When it was given to me, the phone would power on, display the Huawei logo for a few seconds, then the screen would shut off and the notification LED would turn solid blue. Nothing else would happen. I just flashed a new stock ROM onto it via SD, and now it is simply boot looping - it comes on, shows the Huawei logo for a few seconds, but instead of the blue LED, it simply repeats the cycle over and over again. The phone died randomly while in use for no apparent reason - it just shut off, then the LED went blue, and that's the last that was heard of it. It is able to enter fast boot mode, and recovery mode. I have tried factory resetting it, as well as clearing the cache partition, but neither of those worked. HiSuite does not detect the phone when it is in fast boot mode, but my computer does detect it as removable media and allow me to view its files.
Any suggestions? At this point, I'm beginning to suspect hardware failure. Thanks!
So my mom and I have the same phone, a Huawei P Smart 2019 pot-lx1.
The problem
The phone started doing a boot loop anytime you try to turn it on.
It vibrates and shows the Huawei logo like normal, but after the logo the screen turns dark (not off, just dark, the backlight seems to still be on).
Sometimes after this black screen, a 'recharging' icon is visible in red for a brief moment. It's a red circle with a red lightning symbol in the middle.
It does this regardless of whether it's plugged in or not.
I have no idea what this means because as far as I'm aware, the device can function fine without power (see further down below).
After this black screen or flashing the red recharging icon, it just reboots and does the same.
What I tried
The phone refuses to open Erecovery mode (hold volume up and plug in the device). I have confirmed that this method -should- work since I tried it on my own phone of the same model. In the case of my mom's phone it just shows a black screen like normal.
I can get the phone into fastboot, which is great. It tells you to open HiSuite on your computer, which I do, only for HiSuite to tell me "Your device is not supported for system recovery". Furthermore, any commands that could help me return 'Command not allowed', this is returned from the bootloader of the phone and is NOT an OS permissions issue. I've tried stuff like booting into TWRP or wiping userdata this way but it's simply not allowed.
Regarding the battery, I've tried unplugging the phone while it's in fastboot mode. It just stays on like expected and doesn't turn off, so I don't think the battery has no charge.
From what I gather online, the phone has an FRP lock which prevents you from doing anything that could result in the phone getting a reset. FRP can supposedly be disabled, I've tried dc-unlocker but it simply didn't work, presumably the phone is 'too new' because it wasn't in the model list. (I used detection & then the blue nuke option that said Temp FRP unlock or something like that). There are sites that offer FRP unlock passwords which can be used with 'fastboot oem frp-unlock XXX' but I REALLY don't trust these sites and the prices are expensive.
USB debugging is not enabled and I cannot possibly enable it because the phone will never boot, hence I cannot hop into adb and disable FRP that way or do anything else that adb could. I'm essentially stuck.
I also tried some random things like holding volume up + volume down + power during boot. I have also tried countless times to get into erecovery but it simply will never get to that point.
I also tried downloading the phone's firmware and putting all the files where the UPDATE.app is also located in the 'dload' folder on an SD. I also tried putting an 'update.zip' in the root, but this didn't do anything and I think it's pointless unless you can boot into erecovery.
My mom and dad suspect they damaged something related to charging the phone, either the pins or something inside the device by inserting the charger agressively, is that possible at all? It could explain the red charging icon regardless of battery status, but I'm really not sure.
Same problem!
Hi I have the exact same problem with my huawei. Could you able to solve your problem? If so, could you tell me how?
Thank you in advance.
Well, I was replacing a broken lcd screen. (This was not my first screen replacment. Fixing phones for friends and family it's kind of a hobby of mine. )
I turned on the phone and it didn't boot. I got erecovery screen. Tapped to download and update. It found wifi, but it couldn't find necessary file on-line. So I started to google... And in the sea of useless advices I found something I could try. So I installed kirin on the device. Now download and update worked. The device went to reboot after the update and stuck on bootloop. It turnes on, show Huawei logo, and then vibrates shortly (like when you turn on the device). Then the screen goes black, after a while it shows logo, and then vibrates shortly, goes black and so on...
Now, I can still access erecovery and download and update, but it doesn't help. I can also access fastboot.
Also, I have to mention that I'm not that good with software as I am with hardware. And also english isn't my native language so be gentle about that...
So any ideas how to fix this?