Root access isn't working - Galaxy Grand Prime Q&A, Help & Troubleshooting

I'm installed RR OS(7.1.1) First some weak totally ok. But now I've 2 big problem
1. See screenshot My phone still rooted. But sometimes it automatically disabled. Then I need to enable again
2. USB isn't connecting if I enable Android debugging. Works after dusable it. Bit I need too..

Related

[Q] TF101 doesn't connect with PC through USB

Hi guys,
After upgrading to ICS I've been unable to connect my pad to the PC. This is usually not a problem, but last night I needed adb to re-root it. Nothing worked, nothing connected. Tried installing drivers and the Asus sync, but no luck.
Is this a known problem? Anyone got a solution? I doubt it's the hardware as I connected a few days before upgrading...
Found a solution. Went into Settings->Storage and turned MTP off and back on.
tiwas said:
Found a solution. Went into Settings->Storage and turned MTP off and back on.
Click to expand...
Click to collapse
THANK YOU! Everytime I plug in my ET4G to the dock to charge it that stupid MTP crap always comes up. Had no idea I could disable it. Thanks!
yeah, this doesn't always help... I had the same problem when i first got my TF101, and i tried all the tricks, the one mentioned here with mtp, enabling and desabling debug mode, turning off and on with usb plugged in, and some others i can't remember... nothing.
In case anyone else is looking for the answer and the quick tips don't work, what did it for me was installing Android Revolution HD rom. I've read that this problem could also be bootloader related.
Anyways, cheers.
How to connect an ICS device to your computer
Step 1. Connect device to computer via USB
Step 2. Set USB connection as Media Device (MTP) (p.s. if you use a Mac you need to download Android File Transfer)
Step 3. Disable USB debugging if enabled
I hope this helped.
when you need turn off MTP it mean your computer doesn't have driver.
If you need using MTP go to asus page and download driver. it's easy to install driver ^^...
recently I can't understand why same file but the computer at my office can't install that file instead other computers working normal... maybe my work place using old windows version...
Like I wrote earlier - mine was actually in MTP mode, but I had to switch to camera mode and back to MTP for it to start working. Thanks for the replies, though. Hopefully it will help some other people with the same problems

USB doesn't work after OTA

Hey all,
I have tried to google and figure this out but my phone doesn't show up in device manager in windows or in android file transfer on mac EXCEPT when in download mode or when the phone is off/charging via my computers USB port.
So when in download mode, the phone shows up in device manager....
When my device is off and charging via USB port, it shows up in device manager...
I have tried USB debugging mode no change...
Charges just fine. No usb port issues because it connects during download mode etc...
During these times, i obviously can't access the SDcard.... but as soon as the device boots, it disconnects and disappears from device manager even though its still charging etc...
This only happened after the last OTA update.
I assume i will have to restore to defaults as its probably an issue with the kernel and usb protocol but I dont have the phone rooted and i don't want to root it at this time... I am hoping there might be a quick fix and/or setting i am missing.
Thanks!
tronicsmasta said:
Hey all,
I have tried to google and figure this out but my phone doesn't show up in device manager in windows or in android file transfer on mac EXCEPT when in download mode or when the phone is off/charging via my computers USB port.
So when in download mode, the phone shows up in device manager....
When my device is off and charging via USB port, it shows up in device manager...
I have tried USB debugging mode no change...
Charges just fine. No usb port issues because it connects during download mode etc...
During these times, i obviously can't access the SDcard.... but as soon as the device boots, it disconnects and disappears from device manager even though its still charging etc...
This only happened after the last OTA update.
I assume i will have to restore to defaults as its probably an issue with the kernel and usb protocol but I dont have the phone rooted and i don't want to root it at this time... I am hoping there might be a quick fix and/or setting i am missing.
Thanks!
Click to expand...
Click to collapse
You do have to have USB debugging mode checked. If you don't have the developer option enabled in settings, go to about phone, find your build number and tap on it rapidly until it says your developer option is enabled. Back out and you should see a developer tab. Click it and make sure USB debugging is checked. If that doesn't work you might reinstall the latest USB drivers.
i did both of those. the odd part is when in download mode windows chimes that my device it attached.. no problems right? but anytime the android OS is running no chimes at all no recognition at all on any computer... its almost like back in my linux days when the kernal had a usb module failed to load... i swear its as if the kernal turned off usb data communication... power is fine... just wont communicate unless in download mode or in a power off state.... totally weird...
When you plug it into the computer, pull down your notification drawer, make sure USB setting is set to MTP. It usually is set to installer, or charge only by default.
Also I'd say completely wipe out your phone drivers on the computer, and reinstall all new ones.
Possibly reinstall ADB as well.
Sent from my SM-G900V using XDA Free mobile app

CM 12.1 on Note 3: Usb is now disconnected

Hi to everyone, I'm having bad time finding a solution to my problem, but for now nothing helped me.
I've CM 12.1 installed on my Note 3. Since I installed it to my phone, I've never be able to connect my phone to the computer.
When I click on settings-->storage-->usb computer connection, it says:
"USB is now disconnected".
This doesn't allow me to set the usb connection, and so my pc doesn't recognize my phone.
On my pc, it says: "Unknown device, code 43" (looks like it doesn't have drivers).
I've tried everything:
1) different cable, pc, usb connected directly to main board;
2) reboot phone;
3) all the steps about enabling and disabling developer option:
**********************************************************************************************
To see the USB computer connection options:
1. Developer>Disable USB debugging.
2. Reboot.
3. Connect to PC.
4. Settings>Storage, press the overflow button (three dots).
If that does not do it, then:
1. Disable developer options.
2. Reboot.
3. Connect to PC.
4. Settings>Storage, press the overflow button (three dots).
5. Re enable developer options. (About Phone>Build Number-6x)
**********************************************************************************************
But, apparently, nothing changed.
I want to solve this situation becasue I need to install stock firmware now.
Another problem is that I've tryed to install twrp recovery (using flashify), but this made my phone go in recovery bootloop, and so now, It seems I can't access no custom recovery.
If there is no solution to the problem above, at least help me to install the right twrp recovery (if compatible with cyanogen mod 12.1), so I can try a stock firmware flashing using it.
Thanks for answering, hope someone can help me.
Note: I've installed 12.1-20151120-NIGHTLY-hlte version, and, if I search update it says that there are some updates, but I cannot upgrade my system.
Have you installed the drivers on the PC ??
Usb cable is damaged or lack of driver on PC.

Lenovo K4 not showing on P.C after flashing

Hello Everyone, I have flashed my Lenovo K4 Note with RR 5.8.3 recently, everything went fine thanks to the developers. But my sd card and phone memory won't show in PC after connection through data cable. I tried all the methods in Google of USB driver updating and all, but nothing is working. Please help am not able to transfer files or access my phone in P.C.
Hello my friend
This happened to me too .. try enable usb debugging and oem unlock If it did not work .. try another pc or install new win then install driver and i'm sure it will be work
mahmoudehab said:
Hello my friend
This happened to me too .. try enable usb debugging and oem unlock If it did not work .. try another pc or install new win then install driver and i'm sure it will be work
Click to expand...
Click to collapse
Thanks for the prompt reply. Dude, a not able to find OEM unlock in the Developer Options, earlier it used to be there. And i tried USB debug still not working.
mahmoudehab said:
Hello my friend
This happened to me too .. try enable USB debugging and OEM unlock If it did not work .. try another PC or install new win then install driver and I'm sure it will be work
Click to expand...
Click to collapse
Hey, Bro, I found the solution
1. Goto C:/Windows/INF and search for wpdmtp.inf & right click and install it.
2. Turn on safe mode on your phone and then connect it to PC then remove safe mode.
moi_sudeep said:
Hello Everyone, I have flashed my Lenovo K4 Note with RR 5.8.3 recently, everything went fine thanks to the developers. But my sd card and phone memory won't show in PC after connection through data cable. I tried all the methods in Google of USB driver updating and all, but nothing is working. Please help am not able to transfer files or access my phone in P.C.
Click to expand...
Click to collapse
Brother i think you have missed something. Open developer option and ON USB Debugging. If you connect your phone with PC then by default it will be connected as a charger you have to change it to Transfer Files.
Swipe down your notification pannel and there is a notification of USB touch that and new popup will open to phone and then change it to Transfer Files and you are done. Now you can transfer files.
I uploaded some screenshots to help you better.
Hit like if you think i helped you.
moi_sudeep said:
Hello Everyone, I have flashed my Lenovo K4 Note with RR 5.8.3 recently, everything went fine thanks to the developers. But my sd card and phone memory won't show in PC after connection through data cable. I tried all the methods in Google of USB driver updating and all, but nothing is working. Please help am not able to transfer files or access my phone in P.C.
Click to expand...
Click to collapse
Goto device manager in pc, under portable devices you will find MTP device. Right click and uninstall the driver. A new icon with exclamation mark should appear. Double click on it, installation wizard pops up then click on ' browse my computer for drivers' then you find mtp drivers now install MTP USB Device... Not MTP Device. Just reconnect the phone. And the job is done.
moi_sudeep said:
Hey, Bro, I found the solution
1. Goto C:/Windows/INF and search for wpdmtp.inf & right click and install it.
2. Turn on safe mode on your phone and then connect it to PC then remove safe mode.
Click to expand...
Click to collapse
thanks! its worked for me
Hello please that can help me I am totally lost ... my phone lenovo vibe k4 note after 4 months of normal use ... suddenly I notice that the charge percentage thinks and descends quickly like a crazy Then it loads itself ... and again the pc can not detect it in normal mode or the mode of download (by the method of flash tool) ...

(XT1563) USB Problems

Hi, my brother got this phone with RR 7.1.1 installed and it seems like the rom has lots of bugs because it reboots from time to time and instead of botting to the system it bots to TWRP, I downloaded Lineage OS to install it but the phone isnt detected at all by the PC, like, it wont even tell me there is a new device connected, the usb port is working because I can charge it just fine with the charger but nothing works when connecting it to the PC, anyone has faced this problem or knows how to fix it? Also, can I just downgrade to stock marshmallow?
Thanks in advance.
zeratos said:
Hi, my brother got this phone with RR 7.1.1 installed and it seems like the rom has lots of bugs because it reboots from time to time and instead of botting to the system it bots to TWRP, I downloaded Lineage OS to install it but the phone isnt detected at all by the PC, like, it wont even tell me there is a new device connected, the usb port is working because I can charge it just fine with the charger but nothing works when connecting it to the PC, anyone has faced this problem or knows how to fix it? Also, can I just downgrade to stock marshmallow?
Thanks in advance.
Click to expand...
Click to collapse
Go to settings, developer options and enable debugging mode. When you will connect via usb it should ask for authorization. Post authorizing, pull down the menu and set usb to data transfer.
There are other options like using memory card or transfer via xender.

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