TWRP Issue with wiping cache/dalvik cache - Samsung Galaxy S7 Questions and Answers

My S7 g930FD is rooted, and I have installed TWRP 7.0.2.2 Through flashify. I can go to Recovery but cannot delete cache / dalvik cache or anything else. What seems to be the issue? Forgive me if somebody asked this before.

Denli said:
My S7 g930FD is rooted, and I have installed TWRP 7.0.2.2 Through flashify. I can go to Recovery but cannot delete cache / dalvik cache or anything else. What seems to be the issue? Forgive me if somebody asked this before.
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Hi mate
Did you wiped the Data partition as requested?
Only if you want internal storage or data to work in TWRP:
Go to [Wipe] -> [Format Data] (not advanced wipe) -> type "yes".
WARNING: This will wipe your internal storage, disable encryption, and factory reset your phone!
Go to [Reboot] -> [Recovery].

Related

[Q][i9020T] Formatting partitions & installing a ROM

Hello, I'm just trying to gather as much information as I can and be clear about everything before I install a custom ROM. I have already rooted the nexus s.
The ROM I'm interested in is this CyanogenMod 7.
In their installation instructions it says
- Format the system, data & cache partitions of your device.
- Perform a factory reset.
From another guide (AddictiveTips) they just tell us to do the following
- Select wipe factory/data reset.
- Now, wipe cache and dalvick cache.
The xda thread tells us to format system, data, and cache partitions. But the AddictiveTips guide only seem to tell us to format the data & cache partitions.
So my question is, does the system partition automatically get formatted while installing the new ROM, or do you have to manually format it by going to mounts and storage > format system before installing the ROM?
Also, do you guys recommend to format all the required partitions by going to mounts and storage or by selecting wipe factory/data reset and wipe cache from the main menu? Thanks in advance.
...anyone?
Wipe factory/data reset (this will obviously also wipe the caches)
Install zip from SDCard (ROM)
Reboot.
Greetz

question about wiping

quick question, im new to rooting the transforner and i just want to know, when i wipe to install prime will it erase my music that is on the internal storage? If so, is there a different way to wipe to keep certain files? Cause i also have my titanium backup files on internal as well, thanks in advance.
First of all, your title made me laugh for a good 1 minute. Somehow, "question about wiping" just doesn't sound very technical and sound more like it has something to do with our bodily functions.
No, "wiping" cache and data will not touch your files. Android is different than windows. Windows OS has 1 big partition where everything is in there. Android has 12 partitions, each one has it's own purpose. When you wipe the data partition, what you're really wiping is app data partition. There is also a user data partition where all your files are kept. Unless you do a format of your sdcard in the advance menu, all your user files are safe.
So, before you install a custom rom, make sure you wipe cache and data/factory reset. Also wipe dalvik cache. Trust me, all your porn files will still be there waiting for you.
Sorry, I have a weird sense of humor.
Lol, thanks buddy. Ive never had an android device with an internal sdcard so i was a little concerned. Thanks again.
goodintentions said:
So, before you install a custom rom, make sure you wipe cache and data/factory reset. Also wipe dalvik cache.
Click to expand...
Click to collapse
I was wondering, is a data/factory wipe always necessary? When I flashed Revolver 3.9.3 for the 1ste time from stock rom, I did a data/factory wipe, cache wipe and dalvik cache wipe in CWM. When updating this Revolver rom to 3.9.5 using zip-file, I only wipe cache and dalvik cache. On my Moto I wipe cache and dalvik cache before and after the zip update when updating a custom rom, but I'm not sure if the latter is necessary. I guess a data/factory wipe is only necessary when flashing a new base rom?
wiping is usually recommended as sometimes if you install with out wiping it will cause weird problems :/

CWM Menu

I have a few question in the menu of CWM.
Correct me if I'm wrong.
-reboot system now (reboots system)
-apple update from sd card ( what does this do? )
-wipe data/factory reset (you have to do this everytime u flash a new rom)
-wipe cache partition (what does this do?)
-Install zip from sd card (install rom and kernels)
-backup and restore (make back ups and restore)
-mounts and storage (what does this do?)
-Advance (battery calibration, dalvik cache, right?
-power off ( shuts down )
Edit:
When I see rom and kernel that says 'Clear cache' is that partition cache?
From eagle blood
WIPE WIPE WIPE
wipe data
wipe cache
wipe dalvik
back to main screen
mounts and storage select format/system <<< (What is this? Is this required before you can install any rom?)''
--
Also, if I click wipe data/factory reset, than I don't need to do wipe cache and dalvik right?
I know for a fact that...
Wipe cache- just wipes the extra cache (does what it says)
Apply update- can be used to install updates like kernels if the zip is changed to update.zip
Yes when it says wip cache it means the cache partition, and you still need to wipe both caches after a factory reset.
Hope this helped!
So everytime you install a new rom, it's best to do
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
right?
nitrogen618 said:
So everytime you install a new rom, it's best to do
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
right?
Click to expand...
Click to collapse
Updating ROM:
-wipe cache partition
-wipe dalvik cache
-wipe data/factory reset(good in practice, but not necessary)
Changing ROM:
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
-Format System
How do I format the system?
I'm asking this because I'm going to get this phone in like 1-2 days.
Is it necessary to format system? Say Eagleblood to cm7.
When changing kernel, I should do only cache partition and dalvik cache right?
EDIT:
http://forum.xda-developers.com/showthread.php?t=1158377
What is this? Seems like people deleted their internal partition? What caused it?
Sorry for being a noob. :/
Edit2:
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7.
Are these the correct steps?
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
Than install from sd card and select rom.
nitrogen618 said:
How do I format the system?
I'm asking this because I'm going to get this phone in like 1-2 days.
Is it necessary to format system? Say Eagleblood to cm7.
When changing kernel, I should do only cache partition and dalvik cache right?
EDIT:
http://forum.xda-developers.com/showthread.php?t=1158377
What is this? Seems like people deleted their internal partition? What caused it?
Sorry for being a noob. :/
Edit2:
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7.
Are these the correct steps?
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
Than install from sd card and select rom.
Click to expand...
Click to collapse
Format system is under mounts and storage in recovery.
Is it necessary to format system? Say Eagleblood to cm7. Yes
When changing kernel, I should do only cache partition and dalvik cache right? Correct
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7. Are these the correct steps?Almost
Should be:
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
-Format system
prettyboy85712 said:
Format system is under mounts and storage in recovery.
Is it necessary to format system? Say Eagleblood to cm7. Yes
When changing kernel, I should do only cache partition and dalvik cache right? Correct
Say I got my phone running stock gingerbread, and I have CWM installed. And I wanna flash CM7. Are these the correct steps?Almost
Should be:
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
-Format system
Click to expand...
Click to collapse
What's the consequence if I don't '-Format System?'
Also, if I format system, that means everything even the rom will be deleted right? Won't mess up partition table or anything like that right for cwm?
nitrogen618 said:
What's the consequence if I don't '-Format System?'
Also, if I format system, that means everything even the rom will be deleted right? Won't mess up partition table or anything like that right for cwm?
Click to expand...
Click to collapse
This is my first Android device, coming from a iPhone 3GS.
I have flashed rom before using CWM, but that was on my friend's HD2.
nitrogen618 said:
So everytime you install a new rom, it's best to do
-wipe data/factory reset
-wipe cache partition
-wipe dalvik cache
right?
Click to expand...
Click to collapse
Dont forget to backup, just if something goes wrong. Thats before doing the wipes.
Sent from my LG-P999
nitrogen618 said:
What's the consequence if I don't '-Format System?'
Click to expand...
Click to collapse
Force closing all the time
nitrogen618 said:
Also, if I format system, that means everything even the rom will be deleted right? Won't mess up partition table or anything like that right for cwm?
Click to expand...
Click to collapse
Yes. Everything will be deleted. The partitions will not be touched.
Everything I use is as follows:
Wipe data factory reset, this clears all data on your phone, including the present rom and kernel, to make room for the new one.
Wipe cache partition, this clears all saved data and stuff you've been doing on your previous rom.
Install zip from SD card (External SD)
Install zip from internal SD card, normally when you download a rom from your browser lies here.
Advanced:
Wipe Dalvik cache, this I'm not sure what it precisely does, though it clears data from previous roms.
Key test, this is mainly used for fixing broken or not working keys.
And reboot system now speaks for itself.
That's all I use for flashing anything
Sent from my LG-P999 using xda premium

I must do factory reset?

i have installed cm7 nightly but i want install cm7 "stable".I must do factory reset,wipe data etc?
Just cache and dalvik cache wipe required.
ashishv said:
Just cache and dalvik cache wipe required.
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Click to collapse
agree with ashishv
but a clean install is good
1. install recovery
2.boot into recovery
3. do any options with "wipe"
4. select & update your new zip file.

Encryption Unsucessful Fix

I am trying to install an Oreo based ROM lineage os 15.1
Currently data partition is ext4
Latest Twrp installed
But still whenever I try to install any Oreo ROM I get encryption unsuccessful message and even after factory reset with yes I get stuck on same thing again and again and if I try to change recovery after installing ROM the phone gets stuck in boot loop can anyone please help to solve this problem
I think this will solve ur issue
Yup I have also the same problem first of all do all these steps I think it resolve your issue:-
1. Go to settings of TWRP and reboot recovery.
2. Now format all the internal storage if u have important files in internal storage skip this step
3. After that go to advanced wipe and select system and data one by one and change its format to ext4.
4. Now advanced wipe everything.
5. Thats all now you can install lineage 15.1
I did the same and its working properly in my phone.
This problem occurs due to change of format of data to f2f so convert it to EXT4 and its fine
when you did advanced wipe to evertything is data, cache, system, etc? i already did this but still saying me that my phone was encrypted and i have to unlock with the pin or my account but i get a loop even if i put the correct user and password.
Udgam Tiwari said:
Yup I have also the same problem first of all do all these steps I think it resolve your issue:-
1. Go to settings of TWRP and reboot recovery.
2. Now format all the internal storage if u have important files in internal storage skip this step
3. After that go to advanced wipe and select system and data one by one and change its format to ext4.
4. Now advanced wipe everything.
5. Thats all now you can install lineage 15.1
I did the same and its working properly in my phone.
This problem occurs due to change of format of data to f2f so convert it to EXT4 and its fine
Click to expand...
Click to collapse
Normal procedure. Fastboot boot command
Boot to TWRP.
Reboot to TWRP through reboot menu.
Factory reset.
Advanced wipe: change data file format to ext4
Reboot to TWRP through reboot menu again.
Wipe, format data.
Now wipe system, cache and dalvik.
Reboot to TWRP again.
Flash rom.
Gapps.
Magisk if wanted.
Wipe dalvik and cache.
Reboot and enjoy
Murkroow said:
when you did advanced wipe to evertything is data, cache, system, etc? i already did this but still saying me that my phone was encrypted and i have to unlock with the pin or my account but i get a loop even if i put the correct user and password.
Click to expand...
Click to collapse
Bro I already mentioned first of all you have to Factory reset but it will wipe all your data from internal storage so do have a back up for that. Encryption issue can only resolved by factory reset.
Check out my video
​It helped many people hope it helps you.
https://m.youtube.com/watch?v=Ov_Eq268_4U

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