Develop Bugs

some questions

i permrooted my dhd with visionary+ yesterday and now i want to do a nand backup , from what have understood i have to boot the phone whilst holding pwr + vol down then select recovery from the menu and hold pwr + vol up to get to the menu and then the nand backup should be amongst the alternatives there, but on my phone the alternatives there are :
Reboot system now
Apply sdcard:update.zip
wipe data/factory reset
wipe cache partition
and at the bottom half of the screen it says :
E: can't open /cache/recovery/command
have i missed something out , or is there a problem?

boundish said:
i permrooted my dhd with visionary+ yesterday and now i want to do a nand backup , from what have understood i have to boot the phone whilst holding pwr + vol down then select recovery from the menu and hold pwr + vol up to get to the menu and then the nand backup should be amongst the alternatives there, but on my phone the alternatives there are :
Reboot system now
Apply sdcard:update.zip
wipe data/factory reset
wipe cache partition
and at the bottom half of the screen it says :
E: can't open /cache/recovery/command
have i missed something out , or is there a problem?
Click to expand...
Click to collapse
I think you need to install a custom recovery (ClockWorkMod) to do that. You can do it via ROM manager app available in the market.

Hi all,
if I will install the custom recovery (ClockWorkMod), I will be able to downgrade to the original recovery?
sorry, but I have been searching in the forum but I only found how to flas back the original rom...
...I received my device 3 days ago!! thx!!

killkenny said:
Hi all,
if I will install the custom recovery (ClockWorkMod), I will be able to downgrade to the original recovery?
sorry, but I have been searching in the forum but I only found how to flas back the original rom...
...I received my device 3 days ago!! thx!!
Click to expand...
Click to collapse
Yes flashing an RUU will reinstate the original recovery

I think so brick my galaxy nexus

hi everyone; my galaxy nexus is rooted and i'm trying to learn clockworkmod and i have e been format system, cache and data.. and my phone is not boot the anroid i press the power button screen is GOOGLE and padlock logo but no boot What should I do

is this a joke or what?
u formatted everything (included system where the OS is installed)...what do u expect to boot now? u deleted everything in ur phone
flash a rom

Oh boy... Here we go again... Sorry to be an ass but read people READ before go messing with your multi hundreds dollar/euro phone! And don't use the B word.
Flash a ROM and be sure to read what you should do, in what order, what the risks are and how NOT to do it. There is a huge information source right on these forums but try to give it some effort yourself.
/* end rant */
Now go to the devellopment section, read all stickies and if you then don't succeed: ask again.

andQlimax said:
is this a joke or what?
u formatted everything (included system where the OS is installed)...what do u expect to boot now? u deleted everything in ur phone
flash a rom
Click to expand...
Click to collapse
how can i flas a rom i dont know please help

why would you think formatting system is a good idea? would you format your C: drive on your computer like that?
the good news is your phone is not bricked, you need to learn to use fastboot and reinstall android.

fanno said:
hi everyone; my galaxy nexus is rooted and i'm trying to learn clockworkmod and i have e been format system, cache and data.. and my phone is not boot the anroid i press the power button screen is GOOGLE and padlock logo but no boot What should I do
Click to expand...
Click to collapse
Welcome to XDA, next time a search would have gotten you the information you were looking for.
The good news is, you're not bricked. Boot into recovery manually, mount USB and attach your phone to your computer. From there you can drop a rom into your phones storage and flash.
Take some time and read through some of the threads. Starting with the pinned ones at the top of the page.

FLASHING a rom 101:
Switch off phone
Boot to RECOVERY mode by pressing the Volunme buttons and POWER button simultaneously .
Scroll the Volume button down till you see “RECOVERY MODE ” . Then press POWER button to select.
The phone will boot into Recovery mode and you will see the RECOVERY menu.
Using the vol buttons , scroll up or down to and perform the following actions :
Press POWER button to activate your choice
- Clear cache partition
- At Advanced – select it and choose Clear Dalvik Cache
- Select ” wipe data/factory reset” ( Read the NOTES below on this step )
- GO Back and select ” Install zip from SD card” – than select ” Choose zip from SDcard” . You will see a list of all your files in the SDcard – use the volume button to scroll up or down and select the rom zip file . Press POWER button to select it
Your phone will start to flash the new rom
Wait for process to finish and phone will reboot successfully into the new rom. This process will take 2-3 minutes to complete
NOTES : Most rom developers will advise you to wipe phone , ie clear data/factory reset when flashing their upgraded roms or new roms. The main reason is to avoid bugs or unnecessary force closures and all such reports with phone wipe clean will enable the rom developers a more accurate assessment of your issues. However this step is really unnecessary if you are flashing among roms of same build ( eg 4.0.3). It is advisable to wipe clean if you are moving from say 4.01 or 4.0.2 to 4.0.3. Anyway if you did not wipe phone clean and you faced continual rebooting , than last option is switch off phone. Boot back to recovery mode, select clear data/factory reset and reboot system
You use the same method if you just need to flash KERNEL only. Just copy the kernel zip file into phone and follow same procedures. NO need to clear data/factory reset if you are flashing kernel only...

thank u everyone i solve the problem using galaxy nexus root toolkit v1.3 i press flash stock + unlock and my phone is workin sorry guys but thank u

fanno said:
thank u everyone i solve the problem using galaxy nexus root toolkit v1.3 i press flash stock + unlock and my phone is workin sorry guys i cant speak english good but thank u guys thank u
Click to expand...
Click to collapse
Read before messing with your phone please.

It is a little late but with search you will find this thread easily.
you can just flash a recovery with fastboot no problem at all.
then boot to recovery and flash what ever u want.

Yo. Don't go formatting stuff unless Instructed to.
And also have a rom ready if you do this. If you would like a place where all the roms are I'll send you a link.
Are you a CDMA sprint or Verizon???
Or a GSM???

wipe cache partition

OK so I have been searching all over the internet and I haven't found an EXACT answer on how to do this. I am TRYING to wipe cache partition on my LG Optimus G Pro, reason being is I cannot download 4.4.2 even after doing a full unroot via SuperSU. It still says my phone is suspected in rooting and cannot download update. I read on one site that doing a wipe cache partition may allow the update. When I try volume down + power, I get a screen that says 'factory data reset, press power key to confirm, any other key will cancel'. When I press volume up + power, it boots into safe mode. So I am quite frustrated by now. Any help would be great, thanks!

Bootloop, need help!

So I flashed a gpe rom (clean install), I am s-off so i dont know why after i deleted some system apps (play books, google plus etc.) and go into recovery to wipe dalvik cache and reboot i get a bootloop. I'm stuck on the bootloop and the phone does not turn off and I dont think i checked usb debug on, anything i can do??

bodooo said:
So I flashed a gpe rom (clean install), I am s-off so i dont know why after i deleted some system apps (play books, google plus etc.) and go into recovery to wipe dalvik cache and reboot i get a bootloop. I'm stuck on the bootloop and the phone does not turn off and I dont think i checked usb debug on, anything i can do??
Click to expand...
Click to collapse
Okay first, in order to get out of the bootloop. Do a Volume up + Power to reboot the phone and after you see the screen go off switch to Volume down + power. After this step you should be in the bootloader (HBOOT). Now use the volume keys to navigate to 'Recovery' and press the power button to select it. Once in the recovery try wiping the Dalvik Cache and /cache partition again and reboot into System and see if it boots properly. If it doesn't then do a clean reflash of the GPE ROM.
Also in order to troubleshoot what caused this, can you give a specific list of the system apps you removed or any other possible things you could've did to cause this?

Help me. Soft keys and notification bar is gone.

I've rooted my htc desire 820u(Indian Dual sim) running on Lollipop 5.0
Then I found MIUI 7 ROM in XDA site. So I tried to flash it after wiping all the data-system-cache-internal storage and it didn't go well and ended up with boot failure. But before doing so, I backed up all the data using TWRP (Boot-System-Data). So when i tried to restore the data, the process is finished successfully.
But when the phone is rebooted I got several error messages like "system ui crashed", "htc dot view crash" "package installer help crash". And notification bar and soft toggle keys are gone. Nothing is accessible now. I tried recovering the same 3-4 times. But the same happened every time. What should I do now?
PLEASE HELP ME.

I will help you bro...
Which version of twrp recovery you have installed..?
And whats is ur radio and os version which show in bootloader mode...

***UNLOCKED***
A51_DTUL PVT SHIP S-ON
Radio-01.01.010_U10305041_08.01.50512
OS-2.10.720.1

thanks brother for your interest
I am using TWRP v2.8.7.0 By kinghunki(htcui,com)

Follow my steps.
1. Go to recovery mode
2. Then go wipe
3.then go format data and there type 'yes' and press enter key
4.then go advance wipe in wipe section and select ... chache,delvik cache ,
System , data, internal sd ..then swipe
5.then restore of your lolipop twrp backup
6.after install ur backup perform a factory reset in wipe section.
7.then again go in formate data in wipe section there type 'yes' and press enter key
8.now preess reboot system
This guide solve ur problm bro ..

sandeep saxena said:
Follow my steps.
1. Go to recovery mode
2. Then go wipe
3.then go format data and there type 'yes' and press enter key
4.then go advance wipe in wipe section and select ... chache,delvik cache ,
System , data, internal sd ..then swipe
5.then restore of your lolipop twrp backup
6.after install ur backup perform a factory reset in wipe section.
7.then again go in formate data in wipe section there type 'yes' and press enter key
8.now preess reboot system
This guide solve ur problm bro ..
Click to expand...
Click to collapse
Ok bro. I'll try this and let you know what happens. :good:

sandeep saxena said:
Follow my steps.
1. Go to recovery mode
2. Then go wipe
3.then go format data and there type 'yes' and press enter key
4.then go advance wipe in wipe section and select ... chache,delvik cache ,
System , data, internal sd ..then swipe
5.then restore of your lolipop twrp backup
6.after install ur backup perform a factory reset in wipe section.
7.then again go in formate data in wipe section there type 'yes' and press enter key
8.now preess reboot system
This guide solve ur problm bro ..
Click to expand...
Click to collapse
Hey this method worked. Though all app data is gone, I'm satisfied that I got my phone in working condition. Thanks a lot :laugh:

Ok boss..now enjoy with ur d820..

sandeep saxena said:
Follow my steps.
1. Go to recovery mode
2. Then go wipe
3.then go format data and there type 'yes' and press enter key
4.then go advance wipe in wipe section and select ... chache,delvik cache ,
System , data, internal sd ..then swipe
5.then restore of your lolipop twrp backup
6.after install ur backup perform a factory reset in wipe section.
7.then again go in formate data in wipe section there type 'yes' and press enter key
8.now preess reboot system
This guide solve ur problm bro ..
Click to expand...
Click to collapse
OMFG man! You are awesome thanks a lot!

sandeep saxena said:
Follow my steps.
1. Go to recovery mode
2. Then go wipe
3.then go format data and there type 'yes' and press enter key
4.then go advance wipe in wipe section and select ... chache,delvik cache ,
System , data, internal sd ..then swipe
5.then restore of your lolipop twrp backup
6.after install ur backup perform a factory reset in wipe section.
7.then again go in formate data in wipe section there type 'yes' and press enter key
8.now preess reboot system
This guide solve ur problm bro ..
Click to expand...
Click to collapse
You saved my life bro :fingers-crossed::fingers-crossed::fingers-crossed::fingers-crossed: :laugh::laugh::laugh::laugh::laugh: