[Q] "Unable to mount cache" problem in TWRP (trying to install WinKat) - Samsung Galaxy Grand Quattro

Hi
I'm trying to install WinKat via TWRP, but everytime that I try to wipe data, the "Unable to mount cache" error appears. I tried to install without wiping everything, but the phone got stuck in the boot screen.
Please help, I'm using TWRP for phones made after July 2014 (Brazil).
Thank you.

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[Q] PLEASE HELP! Can't Flash my Bricked Phone.

Please Help!
After trying to do a partition on my Cherry Mobile Thunder ( a.k.a. MicromaxA91) (2GB of 4GB internal), then I tried to restore factory settings to complete the partition, when It restarted It got stuck in the bootlogo, I got it bricked, Tried to flash my stock rom with TWRP, it failed, Cleared Cache - Failed, Cleared Dalvik Cache Wipe - Failed, tried to Reboot & Restore Factory Settings - still Fails and Prompts " No OS Found, Continue Reboot?" then asks for installing SU, FAILED, Tried to Flash it with ADB - but just pompts "waiting for device" I'm running out of options PLEASE HELP!
capc1989 said:
Please Help!
After trying to do a partition on my Cherry Mobile Thunder ( a.k.a. MicromaxA91) (2GB of 4GB internal), then I tried to restore factory settings to complete the partition, when It restarted It got stuck in the bootlogo, I got it bricked, Tried to flash my stock rom with TWRP, it failed, Cleared Cache - Failed, Cleared Dalvik Cache Wipe - Failed, tried to Reboot & Restore Factory Settings - still Fails and Prompts " No OS Found, Continue Reboot?" then asks for installing SU, FAILED, Tried to Flash it with ADB - but just pompts "waiting for device" I'm running out of options PLEASE HELP!
Click to expand...
Click to collapse
please help!!

[SOLVED] CWM stuck on Formatting /data... Plz help me

I flashed QS-I9300-KK first.
Then i flashed Blekota-S5-Lite without full wipe because i just want to try it.
After moment, i decide to install a clean Blekota-S5-Lite.
So i enter CWM and install Blekota-S5-Lite using 'Install with full wipe'
But it stucks on 'All your apps and data will be lost!' and reboot...
After then, i enter CWM and try to format /data, it always stucks on 'Formatting /data...' and reboot :crying:
Plz help me... :crying:
----
i solved it by flashing official firmware.

Pioneer xdp 100r stuck in boot recovery

I have a Pioneer XDP-100R (hi-res music player) running android 5.1. I tried to root with SuperSU. At the end it asked to reboot my device. Now it's stuck on the android boot logo.
I can access the recovery menu (next track + power). A message is displayed: "E:Can't open /dev/block/platform/msm_sdcc.1/by_name/misc (permission denied)".
If I choose Wipe Data/factory reset, I get:
-- Wiping data...
Formatting /data...
Formatting /cache...
Data wipe complete.
"E:Can't open /dev/block/platform/msm_sdcc.1/by_name/misc (permission denied)".
I get pretty much the same when I try to "wipe cache partition".
None of the two actually make a difference.
Previous track + power is supposed to get me to the fastboot menu but it's stuck on the linux logo.
I had made a backup with adb beforehands but I can't restore it. adb won't see my device unless I select the option "apply updates from adb", but in that case, the only command it accepts is adb sideload.
I have not installed a custom recovery as my device is too rare. I never managed to find a stock rom or custom rom for my device so I can't even flash another one.
Has anyone any clue?
I couldn't find any solution anywhere. I had to return it...
Thanks you very much
Here's a Headfi thread on how to root your DAP and install a custom ROM:
threads/onkyo-dp-x1-dual-sabre-dacs-balanced-sabre-btl-amp-mqa-dsd-256-android-5.780642/page-937#post-13348139

(Newbie) HELP! Lenovo Phab Plus PB1-770M (E: can't mount /cache) Stuck in recovery

Hi, I'm new and have a problem of my own doing.
I loaded the recovery mode and attempted to load TWRP without knowing how to activate Fastboot. Unfortunately, I had wiped the cache partition and rebooted the phone.
It resulted in kicking itself into recovery after a failed boot-up into android, as string of E: can't mount /cache showed. I tried to wipe data/facctory reset and try again but I'm stuck.
If anyone has a possible solution/suggestion, I'm open to do it.

Unable To Mount Storage In TWRP

My lenovo A6000+ got bricked
I want to flash a custom rom by TWRP, when i want to wipe data, cache, dalvik cache, it failed and shows unable to mount storage.
I tried the changing file system but it not working, and when i try to reboot bootloader by fastboot command it stuck in to android logo.
Please help me Sir

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