Root / TWRP install without PC - Galaxy S3 Neo Q&A, Help & Troubleshooting

After replacing the connector (usb port) the phone is not detected on the pc
now I would like to root it to be able to to flash TWRP using Flashify
but as longer its not detected on pc the ODIN method won't work
I have tried all the apps and none worked (framroot, kingroot....)
any ideas please on a working method to root it or install TWRP without PC ?

Related

No USB connection in Downloadmode

Hello!
So, i downgraded my G2 to 4.2.2 (thru the current flashing method from this thread). It worked, but now i want to upgrade to 4.4.2 .kdz again with this tool, but i cant get a USB connection in download mode.
I already installed and re-installed the drivers (from the thread), but still no luck.
The phone is booting fine and i can boot into TWRP aswell, i just cant get a USB connection in downloadmode.
At the device manager theres something like "CDC Serial port"?! cant be installed.
Any clues?

note 4 not detected by pc

Hi everybody,
I formatted my note 4 using twrp and since my phone bootloops. When I connect it via USB, my pc doesn't detect it at all especially Odin (my phone is in download mode). Other devices like my S6 are normally recognised.
I only have access to recovery and download modes.
I tried to reinstall drivers in my pc but nothing changes.
Help please.
did you deleted some apps/bloatware if yes please restore this app called : MtpApplication , this can be the reason your pc cannot recognize your device.
I think you may formated system partition.so just download custom rom and flashi it via recovery

SM-A500FU can't be detected by a PC, booting into recovery boots the system.

Hello,
I have installed a custom rom (Marshmallow) for my SM-A500FU through the adb. Now when I want to install a different rom I have to either boot into TWRP and I can't do that because booting into recovery simply restarts a phone, or I have to boot into Download mode and install it with the adb. The problem is that when the system is running, the phone simply charges, no Windows notifications or devices appear and when the phone is in Download mode Windows detects that a device is plugged in but can't recognize it. I have all the adb drivers, KIES and all that so it's not a problem. Can I somehow boot into TWRP or make Windows recognize my phone so I can use adb?
Thanks.
before installing a rom, have you wiped system, cache, dalvik and data? If yes try with a hard reset and if it doesn't work, too flash stock firmware
Hey,
yes, I wiped everything, I have flashed many roms earlier and I believe I have flashed it properly. I have managed to get into TWRP so I can actually flash FWs. I have only updated my rom to the newest CW13 build there is for my A5. Is there any way to flash a stock FW (for example a XEO KitKat) without ODIN? I can only use ADB through TCPIP and TWRP, so there is no way for me to flash it through ODIN.
Thanks.
so, if you press power+home+vol- it doesn't reboot in download mode, right?
It does boot into the Download mode. The problem is that when I plug the phone into my PC in Download mode it says that the USB Device is not recognized in Windows with 'A request for the USB device descriptor failed' error. When I plug it in when the phone is booted normally into android, it just charges, Windows doesn't see it at all.
whzq said:
It does boot into the Download mode. The problem is that when I plug the phone into my PC in Download mode it says that the USB Device is not recognized in Windows with 'A request for the USB device descriptor failed' error. When I plug it in when the phone is booted normally into android, it just charges, Windows doesn't see it at all.
Click to expand...
Click to collapse
Well, you can't flash samsung firmwares with twrp. Try flashing another rom through twrp
Alright, I have tried to flash multiple ROMs. Currently sitting on a Lollipop. Nothing changed, though. On every single ROM the problem still persists. It's not a problem with the PC as I've tried to connect my A5 to a laptop with freshly installed Windows and KIES and it behaved the same way as on my PC. The cable is fine as well, I have tested it with my old SGS3, it worked just fine on both my PC and laptop. Frankly, I have no idea what to do next, I'm starting to think that the port is physically broken. It's weird though, as I can still charge my phone and there is a response when the phone is in Download mode, just that Windows can't recognize it.
Try with adb command "adb reboot recovery" if it doesn't work you can downlaod odin mobile from play store and flash stock firmware!
Do you have odin for windows ?
zyxw-androidiani said:
Try with adb command "adb reboot recovery" if it doesn't work you can downlaod odin mobile from play store and flash stock firmware!
Do you have odin for windows ?
Click to expand...
Click to collapse
Yes, ihlf his device can boot he can use mobile odin. Have you tried with other PCs, just to see it isn't a problem of your pc?
In my experience usb device descriptor errors are related to the specific PC the error occurs on due to device driver conflicts, but if you get the same error on another pc then it could be the hardware.
I'd certainly be trying another cable first on a fresh PC.
Anyway regardless of all that you can flash the stock firmware with FLASHFIRE available on play as long as you have root.
Sent from my SM-T280 using XDA-Developers mobile app

Need help with rooting my oneplus 5

my op5 usb port is damaged..is there any way to root or install twrp as im not able to connect to a pc. i have an unlocked bootloader and stock recovery

Uninstalled root, now stuck in a boot loop, and windows not recognizing s8.

Hello,
I rooted my s8 a few months back, and recently had no use for it, so decided to uninstall it.
I uninstalled root from Magisk Manager (I tapped the Uninstall button after opening the app), and it restarted my phone. That's when the boot loop started.
My phone kept on showing the Samsung logo, but I could open the TWRP recovery screen.
I tried to follow some steps and flash the stock firmware onto my Samsung, but windows refused to recognize my s8, telling me that the "USB device is not recognized". and that the "Last USB device you connected to this computer malfunctioned". So I'm basically screwed. I should also mention that I also have access to the Download screen.
Is there any way to send the firmware over to my phone without connecting it to my laptop?
Thanks!
Phagosaur said:
Hello,
I rooted my s8 a few months back, and recently had no use for it, so decided to uninstall it.
I uninstalled root from Magisk Manager (I tapped the Uninstall button after opening the app), and it restarted my phone. That's when the boot loop started.
My phone kept on showing the Samsung logo, but I could open the TWRP recovery screen.
I tried to follow some steps and flash the stock firmware onto my Samsung, but windows refused to recognize my s8, telling me that the "USB device is not recognized". and that the "Last USB device you connected to this computer malfunctioned". So I'm basically screwed. I should also mention that I also have access to the Download screen.
Is there any way to send the firmware over to my phone without connecting it to my laptop?
Thanks!
Click to expand...
Click to collapse
A few things you could try :
In recovery :
wipe cache,/dalvik.
Reinstall magisk and see if it boots. If it does then flash the uninstaller through TWRP.
Factory reset
Flash full firmware with Odin.
With the error on windows I have had this issue because of the USB lead try a different one and make sure your Samsung drivers are up to date.
spawnlives said:
A few things you could try :
In recovery :
wipe cache,/dalvik.
Reinstall Magisk and see if it boots. If it does then flash the uninstaller through TWRP.
Factory reset
Flash full firmware with Odin.
With the error on windows I have had this issue because of the USB lead try a different one and make sure your Samsung drivers are up to date.
Click to expand...
Click to collapse
Hey!
I wiped the cache/dalvik and factory reset, but it still put my phone in boot loop.
As for reinstalling Magisk, I have no idea how to do that since I have no access to the Magisk zip and whenever I search in the Install section of the TWRP menu I cant find it either.
Also, my Samsung drivers are up to date, and I even bought myself a new data cable but windows still shows the error message, so I cant flash stock firmware using Odin.
What should I do?
Phagosaur said:
Hey!
I wiped the cache/dalvik and factory reset, but it still put my phone in boot loop.
As for reinstalling Magisk, I have no idea how to do that since I have no access to the Magisk zip and whenever I search in the Install section of the TWRP menu I cant find it either.
Also, my Samsung drivers are up to date, and I even bought myself a new data cable but windows still shows the error message, so I cant flash stock firmware using Odin.
What should I do?
Click to expand...
Click to collapse
To re-install magisk you will need a SD card. Put card into PC copy files ( magisk zip,magisk app and uninstaller ) from this link below then put the card back into the phone. Flash magisk zip in twrp or try the uninstaller zip.
https://github.com/topjohnwu/Magisk/releases
As for the PC issue without seeing the pc it's a bit hard to diagnose.
Others things you could try;
Re-install latest Samsung drivers ( and reboot PC )
Make sure you are plugged directly into a USB 2 port on PC ( no USB hubs )
Try another USB lead ( I know you bought a new one )
Try another PC ( will need Samsung drivers )
Also since you have done a factory reset does TRWP still read you data partition ( a factory reset will re-encrypt your phone )

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