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I know this is not a development thread but I must insist we have something like this in this area. I feel it's important to all development for accurate results and debug information.
I see this all the time. People think they are fully wiping when a developer asks for it. I believe that some people still don't understand what a full wipe is because there is no such single option in ClockWorkMod Recovery. Most likely the reason for that is because Koush didn't want too many posts about "I'm stuck on Google logo" or "my phone won't boot". So here is a test you can do yourself: Backup your ROM of course, and then do a full wipe. Then don't install anything and just reboot. If you end up pass the Google logo and onto the boot loop screen, then what you think is a full wipe is incorrect. If you are stuck on the Google logo and nothing is happening however, then congratulations... you know what you're doing 
For the rest of you, here are proper steps to fully wipe without leaving any trace of ROM on your phone:
* wipe data/factory reset
* format /system
* format /boot
Now most people think that the first option is enough. That may often be the case but because the developer can drastically change the contents of the /system folder, things can get messed up if you don't format it. And guess what, that first option will not do it. Wipe data/factory reset only wipes the /data folder which contains your personal settings and all the apps you installed. The ROM is then left blank as if you just flashed it and you can start over. FYI, the format of boot partition simply wipes the boot animation and you can restore it using the advance option in recovery from ROM to another.
I've seen some zip files which do this automatically so that's fine but at least you know what needs to be done to fully wipe.
There you go. I hope this clears some things. Now lets flash some ROMs! 
Credit
Obasanity
cant get rid of boot logo
san122 said:
I know this is not a development thread but I must insist we have something like this in this area. I feel it's important to all development for accurate results and debug information.
I see this all the time. People think they are fully wiping when a developer asks for it. I believe that some people still don't understand what a full wipe is because there is no such single option in ClockWorkMod Recovery. Most likely the reason for that is because Koush didn't want too many posts about "I'm stuck on Google logo" or "my phone won't boot". So here is a test you can do yourself: Backup your ROM of course, and then do a full wipe. Then don't install anything and just reboot. If you end up pass the Google logo and onto the boot loop screen, then what you think is a full wipe is incorrect. If you are stuck on the Google logo and nothing is happening however, then congratulations... you know what you're doing 
For the rest of you, here are proper steps to fully wipe without leaving any trace of ROM on your phone:
* wipe data/factory reset
* format /system
* format /boot
Now most people think that the first option is enough. That may often be the case but because the developer can drastically change the contents of the /system folder, things can get messed up if you don't format it. And guess what, that first option will not do it. Wipe data/factory reset only wipes the /data folder which contains your personal settings and all the apps you installed. The ROM is then left blank as if you just flashed it and you can start over. FYI, the format of boot partition simply wipes the boot animation and you can restore it using the advance option in recovery from ROM to another.
I've seen some zip files which do this automatically so that's fine but at least you know what needs to be done to fully wipe.
There you go. I hope this clears some things. Now lets flash some ROMs! 
Credit
Obasanity
Click to expand...
Click to collapse
i cant get rid of the boot logo.. tried it hundred times, but the problem remains.. after flashing any rom, i first get the canvas logo, and then the rom boot animation starts,,, and cant even see the "format\boot" option.. is there a problem with the CWM recovery or my device?? CWM recovery is "CWM-based Recovery v6.0.1.2" (compiled by Bruno Martins)
aniket.ydv said:
i cant get rid of the boot logo.. tried it hundred times, but the problem remains.. after flashing any rom, i first get the canvas logo, and then the rom boot animation starts,,, and cant even see the "format\boot" option.. is there a problem with the CWM recovery or my device?? CWM recovery is "CWM-based Recovery v6.0.1.2" (compiled by Bruno Martins)
Click to expand...
Click to collapse
You can't exactly Wipe or remove the boot logo, but you have to Overwrite it! So just choose the boot logo you want and then download it and flash the zip file! Here is the Stock Boot logo.
thanx buddy this guide really helps me
Hello,
I wiped my internal storage with TWRP and after I try flash Dirty unicorn Rom and gapps. After booting where is black screen and I only can restart and shutdown phone. Also in internal storage only TWRP folder how to fix this please?
There is no need to wipe internal storage. TWRP tells you and double check with you that you want to do it. To should not jump into rooting and flashing with out a lot of reading. Go and read how to flash factory images via ADB
SENT BY ENTANGLEMENT
Cict said:
Hello,
I wiped my internal storage with TWRP and after I try flash Dirty unicorn Rom and gapps. After booting where is black screen and I only can restart and shutdown phone. Also in internal storage only TWRP folder how to fix this please?
Click to expand...
Click to collapse
You must be on bootloop. Try wiping cache/dalvic cache through twrp.
If still it won't work, try clean flashing ROM. (After wiping android secure, system, data, cache, dalvic cache)
If you lost your recovery, then flash it again through fastboot.
Explore Below link, hope you'll get something that can work out.
http://forum.xda-developers.com/google-nexus-5/development
If you found this helpful, there's a thumbs up button (thanks button), just press it
Not trying to go over the previous posters but..
Cict said:
Hello,
I wiped my internal storage with TWRP and after I try flash Dirty unicorn Rom and gapps. After booting where is black screen and I only can restart and shutdown phone. Also in internal storage only TWRP folder how to fix this please?
Click to expand...
Click to collapse
"I wiped internal storage"; "Also in internal storage only TWRP folder" - To switch roms you only need to wipe data/factory reset in twrp, nothing else. Wiping internal storage deleted your personal data, which resides under /sdcard/. This is why you ended up with nothing (except TWRP folder, twrp creates that) under /sdcard/.
"and after I try flash Dirty unicorn Rom and gapps. After booting where is black screen" - A simple bootloop. Happened most likely because you didn't wipe data/factory reset. Another thing causing the bootloop might be gapps. Ever since PA Gapps went down, I've tried a couple of gapps packages, and at least one bootlooped on 5.1.1. If after reflashing your ROM and gapps after wipe data/factory reset in TWRP doesn't bring you Android UI, try wiping /system and JUST reflash the ROM, to see if it boots without gapps.
Also:
@zerosum0, please edit your post, statement "Go and read how to flash factory images via ADB" isn't accurate.
@hitman-xda, please edit your post, statement "If you lost your recovery, then flash ROM directly through computer" isn't entirely accurate. One way to put it would be "If you lost your recovery, then flash it again through fastboot". Although in this case, OP doesn't seem to have done anything to lose custom recovery.
If you're flashing the newer (5.1.1-based) DU ROM, make sure the GAPPS you flash is for 5.1 too... GAPPS for 5.0 won't work. (I use TBO GAPPS blacked-out and have had no problems.)
I've read this issue with other devices, however. i've not found a solution for this yet
I'm new to this forums, let me know if i don't do something right.
I've been using Alberto97's AOSP Lollipop 5.1.1, it's my first custom rom install, i got it on
the first try, TWRP 2.8.6.0 running with no problems.. flashed other stuff like moto camera, marshmallow bootanim, and that's all
Last week i've tried to update to the CAF latest version of his build, however, TWRP
reboots when i try to wipe the /data partition, in the custom TRWP 2.8.7.0 thread found
i might need to repair the partition, i tried it with no success, repaired /cache with no problem, but when i try to fsck /data on TWRP it gaves me an error, haven't tried /system yet.
tried using CWM and it got stuck at wiping /data for like an hour (endless loop), i rebooted, the data was wiped, but i couldn't flash the ROM image, rebooted to clean system with no problems, it wipes cache and dalvik with no issues.
What's causing this? i have not faced apps FC or anything, just the TWRP random crashes at wiping, i'm using a Moto G XT1032 16GB TWRP 2.8.6.0 No custom kernel or non official recovery.
justpaste.it/wipedar
Leaving recovery.log on external page for reference.
hope you can help, thanks in advance.
Same problem here
You can use CWM by PhilZ for fixing what I think is a broken symlink to the emulated internal storage card.
I am using philz-6.58.7-falcon that you can find and download here: http://forum.xda-developers.com/showthread.php?t=2639583
Once you have flashed the new recovery you can go to "Advance menu", then to "change sdcard target" and define it to /data/media (you just have to tap on the option to set it).
Go back, select "Wipe option", then "Wipe User media" and the process should be successful.
If you reinstall TWRP and wipe "/data" now the rebooting problem should be gone and everything back to normal.
Hope this helps for you.
By the way this is my very first post here. So I hope I am doing this right.
Greetings.
Thank you for the help, i fixed it by repairing the userdata partition with the latest TWRP
Hello.
I apologize in advance for probably silly question
Is there any way to obtain the root to the latest stable firmware?
The bootloader is unlocked, I boot TWRP using fastboot:
fastboot boot recovery.img
Click to expand...
Click to collapse
Install SuperSU.zip and after restart in an endless white logo is displayed on a black background. As far as I understand this called bootloop.
The same thing if the flash TWRP. I tried different versions of TWRP and SuperSU.
Is there some way to obtain root access on the official stable ROM V7.2.3.0.LXKCNDA?
Maybe there are some features of obtaining root after unlocking the bootloader?
Thanks in advance for any answers.
backup of rom in twrp first and after...
Flash UPDATE-SuperSU-v2.65-20151226141550.zip, wipe cache and wipe dalvik cache and reboot.
If it don't works may be do a clean install of stable xiaomi.eu with the fallowing procedure:
format data, system, cache, flash zip rom, flash supersu and after that reboot.
i hope it works.
if you do a clean install you lost all your data in operating system but mantains all data in internal memory.
after this wait at least 10 to 15 minutes to boot.
thanks for reply
unfortunately it did not work with the official ROM V7.2.3.0.LXKCNDA and V7.2.4.0. After zip installation, for 15 and more minutes hanging at boot logo.
with xiaomi.eu_multi_libra_V7.2.3.0.LXKCNDA_v7-5.1 all is ok.
Hello everyone! Need help.
I was testing some Xposed modules and then the system crashed and started no more.
I entered the twrp and made a wipe in all the options that there was to do.
The problem is that now the phone does not start any more, there is no way to get into the recovery or the room. When you turn it on, it goes straight to the recovery qualcoom screen. How should I proceed?
Sounds like you wiped system aswell...
Fastboot twrp should work.
In fastboot twrp flash twrp zip
Reboot to twrp
Flash OOS
Flash twrp
Reboot to twrp
Flash magisk
Should get you booted atleast
reflash oxygen os in twrp after wiping data and cache
matze19999 said:
reflash oxygen os in twrp after wiping data and cache
Click to expand...
Click to collapse
I can not access twrp because I've made a full cache, dalvik, system, and internal memory wipe. Only fastboot mode opens
You should can access TWRP because you didn't wipe recovery partition
https://forum.xda-developers.com/oneplus-6/how-to/tool-msmdownloadtool-v4-0-international-t3903272
Follow the instructions care full...you device will work
Thanks man <3