the other day i was tranfering videos to my phone and my phone restarted and said in twrp
unable to mount '/data
unable to recreate /data/media folder.
unknown file system: 'datamedia'
when i reboot it says decrypt password ,but i never made one . i also can get to download mode but when i try to use the flash tool it stops at 16 sec and says erase command failed please help i cant figure out what to do.
anyone any ideas please !!!
Hi,
i'm pretty new to this and i have kinda big problem. I had MIUI 7 rom installed on my S4 I9505, but yesterday after the update phone wont boot. I downloaded new .zip file, put it on SD card, boot into recovery, wipe everything and tried to install new rom. With no succes. I tried 3 differrent roms, i even tried with diffirent recovery, still nothing.
This is what it says:
Installing: /storage/sdcar1/cm-12.1-20151106-NIGHTLY-jfltexx.zip
Finding update package
Opening update package
Installing update
detected filesystem ext4 for /dev/block/platform/msm_sdcc.1/by-name/system
mount: failed to mount /dev/block/platform/msm_sdcc.1/by-name/system at /system: Invalid argument
unmount of /system failed: no such volume
detected filesystem ext4 for /dev/block/platform/msm_sdcc.1/by_name/userdata
Patching system image unconditionally...
And that's it. Previosly i was getting errors, status 0 and status 7 if i remmember correctly, but now not even that
Now what to do? Please be noob friendly At this point i don't even care any more what rom to install, stock or custom, but i think i would prefer stock.
Thanks for your help!
Edit: I found this guide, will it do it? forums.androidcentral.com/ambassador-guides-tips-how-s/499009-guide-samsung-how-flash-stock-rom-via-odin-new-interface.html
It worked. Admin, you can close/delete this thread.
So, I managed to set my /system permissions to rw-r--r--.. Could anyone help me set it?
It now won't boot, due the no execution perm.
it still has the ownership at 0(Root).
Also, I am very new to this, and tried to add a font..
Error:
Rescue mode
Attention! Please update system again
*dl link*
Error!
Func NO : 18 (PANIC)
ELR: 0x00000000070092f8
Best re-flash /system for your respective ROM version via Fastboot.
You'll need the Huawei Update Extractor Tool to get system.img from the UPDATE.APP Huawei firmware file.
Hello everyone,
Please Help me to fix this issue
TWRP shows E: Unable to mount '/cache'
E: Unable to mount '/data'
E: Unable to mount '/system'
E: Unable to mount '/cache'
E: Unable to mount internal storage
I have twrp v2.5
Actually, I am trying many solutions but nothing change
Hi, pal. I have the exactly same problem these days. On my opinion, when you have made wipe and wipe dalvik cache, you just deleted the system folder and data. I did same thing, now I'm stuck! :Д When you are trying to change the firmware, is the logo pictures changing for you every time you flash any other .zip file? We' are now complete lost man. Is your USB working like mine where PCs not detecting it? I think they've launched this kind of firmware only to destroy our device, so we can buy a new one. That's the idea. Go to the service and repair center of Lenovo and ask them for help! I wrote them down before a while, now I'm waiting for the response. We have left only two or three possibilities to flash the Rom with the Terminal in the Recovery. But if your PC recognizing the drivers, you will manage to flash the Stock 4.2.2 Rom with Flash tool , otherwise you are stuck too! I have no idea how to flash it. I can give you the terminal commands for you, which are hard to find, but you and me, we need the proper .img files for the flashing procedure. Go to the 4pda forum and ask for help, if you find any solution, come back here telling it and for me. There's a possibility, but it is difficult to create a proper .zip archive, because I only know that we need those folders and files: meta folder- updater-script, logo. bin, lk.bin, boot.img and system.img.
But when I insert the commands there, I don't know how the whole process must be working, something is happening there. The problem is that one of those lines did not work for me. Those are the commands for flashing any Rom with the terminal in the recovery. But first you must see if the PC is installing your drivers properly, open device manager and look for the drivers on the internet and try to install them. May be you have a working USB port, so there's no problem, just flash the stock rom with the Flash tool. But if it is not working as it is here, no other possibilities left, my boy! The only one left or two of them : Flashing the device either through fast boot mode or adb sideload, but you must install those drivers so PC can find the device. Well, you can always do this at your own risk from the terminal.
Oh, I forgot, those problem came when we deleted fstab file for our device.
Flashing firmware through the TWRP terminal commands:
dd if=/external_sd/system.img of=/dev/block/mmcblk0p6 (for the memory ROW+ ) or
dd if=/external_sd/system.img of=/dev/block/mmcblk0p5 (for CN+ memory)
dd if=/external_sd/boot.img of=/dev/bootimg
dd if=/external_sd/lk.bin of=/dev/uboot
dd if=/external_sd/logo.bin of=/dev/logo
First, system.img must be converted to systemEXT4.img, then flashing it and you need to have a systemEXT4 in the .zip archive. But I think my system folder is deleted. :Д
simg2img /external_sd/system.img /external_sd/systemEXT4.img
Good luck to you! According to me there is a space after the dot and it must be like this: system. img, boot. img. But not sure!
Hi again. Tooday It occurred to me where our problem may be came with the tablets. When we flashed a custom Rom, we put it for the wrong MTK processor. Ours is MT8389, not 6589. The stock roms are too for the MT8389 according to me. We flashed a wrong Rom. Now the tab must be formatted somehow either through some commands from the terminal, or USB port and path to the USB must be repaired. Then, flashing with the Flash tools is our only option left! Sorry! );
They killed our device on purpose with the Custom rom. Do not flash them any more with such Roms.
I'm receiving a '/persist' (Invalid argument) error while trying to boot via TWRP. Can someone please provide a copy of their persist.img? I'm going to attempt to flash/place via TWRP.
While looking through file manager the persist folder does not contain an image, likewise for the persistbak folder.
Maybe there is a way to build a flashible.zip? Please provide whatever information you might have regarding this issue.
Thank you in-advance guys.
Download fastbooot rom for your phone ,extract with winrar , in images folder you will find persist.img.