Master reset and Safe Mode boot mode - LG Optimus L90

i found this on the tmobile site
and wanted to share
Thanks
Rolo.
Master reset
Master reset from settings menu
A master reset restores the original factory settings and may delete your personal data on the internal storage, such as downloaded content, ringtones, images, apps, and contacts. It does not delete data stored on the SIM card or SD card.
To perform a master reset, follow these steps:
Back up all data on the internal memory.
From any Home screen, tap the Menu key.
Tap System settings.
If necessary, tap the Menu key to switch to list view.
Scroll to 'PERSONAL,' and then tap Backup & reset.
Tap Factory data reset.
Tap Reset phone.
Tap Erase everything.
Review the warning, and then tap OK.
Wait for the system to reset and do not remove the battery.
Master reset with hardware keys
If the device menus are frozen or unresponsive, you can master reset using hardware keys.
To perform a master reset with the hardware keys, follow these steps:
Back up all data on the internal memory.
Power off the device.
At the same time, press and hold the following keys for 8 seconds:
Power key
Volume down key
When the 'FACTORY HARD RESET' screen displays, release the keys.
Press the Power key to confirm the reset. The master reset will automatically start.
Back to top
Safe mode
Turn on and use safe mode
Safe mode allows you to turn on the device with third-party apps disabled. Then you can easily remove all apps that may be causing a conflict or software problem.
To turn on safe mode and use it to fix app problems, follow these steps:
From any screen, press and hold the Power key.
Touch and hold Power off.
Review the 'Reboot to safe mode' screen,' then tap OK.
The device restarts and 'Safe mode' appears in the lower-left corner.
Uninstall third-party apps as desired.
Turn off safe mode
To turn off safe mode, follow these steps:
From any screen, press and hold the Power key.
Tap Power off and restart.
Tap OK.
Back to top

bump

There's no need to bump your own thread, especially since it's a guide.
You should add to the OP that a full factory reset will NOT occur if the laf partition has been zero'd out to enable fastboot. Already been there and done that

Related

Procedure "How to flash Tre0 750 through bootlader using usb"

Procedure:
1.Download 1st firmware you want, i used this one "Treo750_2_23_ROW_EN_DesktopUpdater.exe" direct link http://download174.mediafire.com/b1c0ttuzd1tg/mdajuynnddz/treo750_2_23_row_en.rar
2. Extract the it using "7-zip" http://downloads.sourceforge.net/sevenzip/7z464.exe
3. Copy the extracted firmware "CHEEIMG_FW.nbh" put it in folder of
"RUUWrapper" , the one i selected is new bootloader
5. Put the phone in to Bootloader mode How?
Bootloader mode
1. turn phone on
2. press the MEDIA button AND at the same time with the stylus the RESET PIN
or remove and replace battery
the MEDIA button is the 3rd button on the left side of the phone, under the volume button
the RESET PIN is under the MINI SD card cover
1. keep holding the MEDIA button (left side of phone) untill you get the 3 color screen
6. Now you know what to do after this. "flash the phone"
7. after flashing Hard Reset the phone immediately how?
Hard reset
1. Press and hold the END (red power) key while pressing the pin reset button
2. Continue holding the power button until you see the "Erase all data" prompt
3. Push up on the 5-way to answer "yes" and wait until done
-------------
I successfully fix my customer phone with this procedure
phone problem:
"hang at the PALM splash screen with the grey indicator bar running 99% of the way at the bottom, then hanging"
B.R.
Lemor

[Q] Flash back to clean stock ROM

Help! I have tried to Flash back to clean stock ROM on my Nook Color with no results. I still have all the Andorid stuff and now I can not "re-register my nook color to get my books back. I'm in a world of hurt here and would like to get my Nook Color back to the original state.
PLease help!
None of the following works:
Perform "Factory Reset" to clear /data After this completes, you will need to clear the /data partition.
Method 1: Hardware Key Combination Note: It's been stated that this procedure can be done while the NOOKcolor is powered on or powered off. These instructions follow the powered off method.
1. With the NOOKcolor powered off hold down the n button (home), Vol + button and Power Button until the NOOKcolor powers on.
2. You will be prompted with a Factory Reset dialog. Press POWER key to Exit Press HOME key to continue
3. Press n button (home).
4. You will be prompted to confirm. Press POWER key to Exit Press HOME key to continue
5. Press n button (home).
6. A Clearing Data dialog will show. NOOKcolor will reboot automatically once complete.
Method 2: "Erase & Deregister Device" 1. Go to Settings
2. Select "Device Info" under the top "Device Settings" section
3. Select "Erase & Deregister Device"
4. Select the "Erase & Deregister Device" button
5. You will be prompted with the following confirmation dialog Are you sure you want to reset your Nook? Doing so will return your Nook to factory settings, erase local content and deregister this device. Cancel Reset Nook
6. Select the "Reset Nook" button
7. A Deregistration message will appear and NOOKcolor will reboot.
8. Upon reset a Clearing data message will appear Clearing data... A reset is being performed. This may take a few minutes.
9. NOOKcolor will reboot again once complete.
I had to do this with my first NC so I could exchange it for a non-defective one. You need to interrupt the normal boot up procedure 8 times in a row by holding down the power button while the device is booting. Shut the nook down completely, hold power until the screen turns on and you see the "future of reading" message come up, let the button go for a second, then re-press and hold it down until the device shuts off. Repeat that 7 more times and the nook will automatically factory-reset itself and all the stuff you installed on it will be gone.
You can re-register and re-download all your content after that.
Worked for me.. did it in the car outside BN before I returned my first one

[Q] Sprint tab, Low and Space message

This is after reset back to ea24. All my old info is still there after doing a factory Wipe, wipe cache. All apps crash, and Internal Device storage says only 35.95 MB free. This is with a new flash to EA24 and nothing installed.
Anyone know how else you can force the tab to reset to factory or wipe factory partition and reflash?
BTW this all started right after I updated the Dolphin browser, which did not remember my settings and started the first ran wizard everytime the Dolphin browser was opened.
This is the directions from Samsung Support, but the first step does not take me to any recovery screen. It turns the tab on and then back off if you hold it for 15 seconds.
Victoria: Power off the device.
Victoria: Hold the Vol Down Key + Vol Up Key + Power Key for 15 seconds then release.
Victoria: When the recovery screen comes up, use the volume up key and volume down key to navigate through the selections and the power key to select item.
Victoria: Select Delete all user data to recover the device.
Victoria: To confirm, scroll down and select Yes – delete all user data.
Victoria: The device reboots and again displays the recovery screen.
Victoria: Select Reboot system to restart the handset again.
Those steps should have indeed wiped out any and all settings, apps etc, so if they're still there after doing the wipe (might try doing the process 3x.. galaxy s devices seem to have better luck 3x.. and no you don't have to reboot into recovery, just do the wipe 3x in recovery.) then you might have a messed up device...
After attempting the steps above a few more times now the tab is locked in the Computer and Phone icon and no way to boot in to any other mode. Time to contact Samsung for a return?
Are u able to get into download mode maybe reflash to origional firware and see if it does the same thing

Wipe Dalvik?

Is anyone able to get any options when booting into the stock recovery? It used to be that even if you didn't have a custom recovery, you could boot into Android recovery and factory reset as well as wipe the dalvik cache.
hajabooja said:
Is anyone able to get any options when booting into the stock recovery? It used to be that even if you didn't have a custom recovery, you could boot into Android recovery and factory reset as well as wipe the dalvik cache.
Click to expand...
Click to collapse
No idea how. Got into recovery, but since we have a Volume rocker we can't press both at the same time to get past the first screen. No idea what button combination works....
Sent from my XT1254 using XDA Free mobile app
hajabooja said:
Is anyone able to get any options when booting into the stock recovery? It used to be that even if you didn't have a custom recovery, you could boot into Android recovery and factory reset as well as wipe the dalvik cache.
Click to expand...
Click to collapse
I dont have a Turbo yet, but my guess getting into recovery should be similar to Maxx:
1. With the phone powered off, press the VOL DOWN KEY for 2-3 seconds then POWER key then release.
2. The device will display different BOOT OPTIONS
3. Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to select
Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.
4. The device will display the Motorola logo and then the Android in distress ( logo with Exclamation mark)
5. Press and hold the VOL UP key for 10-15 seconds. While still holding the VOL UP key tap and release the POWER key
Tip: You can try this step, holding the phone in landscape. If you are stuck on step 6, try a force reboot by pressing the Power key and Vol Down key, and start the process again.
6. The device should be in recovery
---------- Post added at 07:56 PM ---------- Previous post was at 07:54 PM ----------
Actually, here is the instructions from Motorola (LINK):
Back to Previous Page
How do I clear Cache Partition on my device?
This will remove any temporary files that may be causing the problem, but will not delete your files or settings.
1. With the phone powered off, press the VOL DOWN KEY for 2-3 seconds then POWER key then release.
2. The device will display different BOOT OPTIONS
3. Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to select
Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.
4. The device will display the Motorola logo and then the Android in distress ( logo with Exclamation mark)
5. Press and hold the VOL UP key for 10-15 seconds. While still holding the VOL UP key tap and release the POWER key
Tip: You can try this step, holding the phone in landscape. If you are stuck on step 6, try a force reboot by pressing the Power key and Vol Down key, and start the process again.
6. The device will display additional menu options (Text will appear in BLUE)
7. Use the VOL DOWN Key to scroll to wipe cache partition and the POWER Key to select this option
8. The device will then perform the partition wipe
9. The device will reboot and start the normal power up sequence
CrazyRussianXDA said:
I dont have a Turbo yet, but my guess getting into recovery should be similar to Maxx:
1. With the phone powered off, press the VOL DOWN KEY for 2-3 seconds then POWER key then release.
2. The device will display different BOOT OPTIONS
3. Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to select
Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.
4. The device will display the Motorola logo and then the Android in distress ( logo with Exclamation mark)
5. Press and hold the VOL UP key for 10-15 seconds. While still holding the VOL UP key tap and release the POWER key
Tip: You can try this step, holding the phone in landscape. If you are stuck on step 6, try a force reboot by pressing the Power key and Vol Down key, and start the process again.
6. The device should be in recovery
---------- Post added at 07:56 PM ---------- Previous post was at 07:54 PM ----------
Actually, here is the instructions from Motorola (LINK):
Back to Previous Page
How do I clear Cache Partition on my device?
This will remove any temporary files that may be causing the problem, but will not delete your files or settings.
1. With the phone powered off, press the VOL DOWN KEY for 2-3 seconds then POWER key then release.
2. The device will display different BOOT OPTIONS
3. Use the VOL DOWN Key to SCROLL to Recovery and VOL UP Key to select
Tip: If the device reboots, you may have waited to long to make a selection, you will need to begin the process again.
4. The device will display the Motorola logo and then the Android in distress ( logo with Exclamation mark)
5. Press and hold the VOL UP key for 10-15 seconds. While still holding the VOL UP key tap and release the POWER key
Tip: You can try this step, holding the phone in landscape. If you are stuck on step 6, try a force reboot by pressing the Power key and Vol Down key, and start the process again.
6. The device will display additional menu options (Text will appear in BLUE)
7. Use the VOL DOWN Key to scroll to wipe cache partition and the POWER Key to select this option
8. The device will then perform the partition wipe
9. The device will reboot and start the normal power up sequence
Click to expand...
Click to collapse
Ahh... I completely forgot about holding the volume button down that long after getting into recovery.
Thank you!
Great!
But the wipe froze on my device and I had to reboot. Second wipe froze as well. Odd.
Sent from my XT1254 using XDA Free mobile app
Coronado is dead said:
Great!
But the wipe froze on my device and I had to reboot. Second wipe froze as well. Odd.
Sent from my XT1254 using XDA Free mobile app
Click to expand...
Click to collapse
Mine did not freeze, however the wipe took what seemed to be 3-5 minutes... Longest cache wipe ever???
Edit: also did not get any sort of "upgrading OS" or "upgrading apps" message like on my previously rooted devices... Just the standard insanely fast boot.
Weird.
Recovery Options changed for Lolli
FYI, Wipe cache took 8 minutes on my phone and I've heard reports of up to 21 minutes.
Wipe Cache Partition - DROID TURBO by Motorola
[Device-Specific Instructions]
If apps freeze/hang, your device crashes/resets, you can't view email attachments or website images or your data isn't syncing, wiping your cache partition may help.
Caution Performing a wipe cache partition removes any temporary files that may be causing an issue with the device. All personal files and settings aren't affected by this option.
1. Ensure the device is powered off.
2. Press and hold the Volume Down button and Power button (located on the right edge of the device) for approximately 3 seconds then release.
3. From the 'Boot Mode Selection Menu' screen, select Recovery mode.
Note Utilize the Volume buttons to scroll through the menu options and the Power button to select.
4. From the 'Android system recovery' screen (Android figure lying on his back), press and hold the Power button then press and release the Volume Up button to display the menu options.
5. Select wipe cache partition.
Note Utilize the Volume buttons to scroll through the menu options and the Power button to select.
Note The process may take 60 to 90 seconds to complete.
6. Select reboot system now.
Note The device may take 60 to 90 seconds to restart.
Taken from: http://www.verizonwireless.com/support/knowledge-base-117345/

Recovery mode problems

So I'm trying to wipe cache partition but for some reason when I go to recovery mode it takes me to a different menu with less options. And one of those is wipe cache partition. And I'm doing the steps correct, hold down power button, home button, and volume up button then let go when the Android logo appears etc. But it still takes me to this different menu. Any help?

Categories

Resources