Flash stock ROM on P760 without LG usb-sw mode - LG Optimus L9 P760, P765, P768, P769

Hi to all.
Recently I bought a L9 p760, flashed with v20c open stock and then rooted. I've installed some root apps, and playing with them I've accidentally make something wrong. At the first reboot of the smartphone the LGSystemUI.apk and the Keyboard.apk crash repeatedly, showing the error modal window at every second.
So I've proceed with the Hard Reset, and reboot again. At this point things were even worse. The SetupWizard procedure appears to me, but I'm unable to skip and go on, because of SystemUI and Keyboard frequently crashes. In addition to this, the SetupWizards.apk itself crashes at the end of the procedure, and then it re-runs again from the first screen.
Now, I think that flashing the rom again I could repair this problem, but the LG flashing tool working only with a booted device connected to PC in SW mode, condition that I cannot reach at all, cause I'm stuck to the SetupWizard screen.
Now, is there a way to flash a ROM using the recovery mode? (Vol+ + central button + power)
Thanks for any help!

Related

[Q] Lenovo A830 Boot Loop No Recovery

I have a problem with one of my Lenovo A830 phones.
I bought it from Etotalk, so it came rooted, and with their custom version of the Lenovo Stock ROM and their custom version of CWM 5.5 installed.
I tried formatting my SD card and then doing a factory data reset from within the operating system. (I was intending to install MIUI V5 after rebooting into recovery).
However, on rebooting, the device is now caught in an infinite boot loop, and I am not able to boot into recovery mode (by holding down power and both volume keys). It loads the initial splash screen, then shows a few seconds of the Android character and some whirring cogs before rebooting.
I am able to boot into Factory mode (power and volume up) or Meta mode (power and volume down). Factory mode has a number of options, but they are all in Chinese characters, which I am unfortunately not able to read.
I did notice that my SD card seemed to be write protected when I tried to format it in my computer and to copy on the new ROM - I solved this by putting it in a different phone and reformatting it. I wonder whether the factory reset process has write protected something it shouldn't have?
Does anyone know how I might best proceed? I've been digging around on the forums, and tried a few things, but there's nothing which seems to provide a coherent solution for this problem.
I've got the latest Android SDK Tools, MTK Droid Tools 2.4.8, SP Flash Tool 3.1312, some additional ADB drivers (120827 v3.7) that I'm not sure how to install, the latest MIUI V5 ROM (3.8.16), and the latest stock Lenovo ROM (S118 from Need A ROM, just in case I need it).
Maybe different SP Flash Tools version?
I had trouble using SP Flash Tools v3.1312 with A830. Once I switched to v3.1304.0.119 I was able to flash both the original ROM and the custom MIUI one without serious issues. I'm unable to post the download link but google it.
One other thing is that when connecting the phone, it usually loads the something something Preloader driver, which is no good (even if it gives you Download OK). When attempting to flash either ROM, try pressing both the power and volume up buttons while connecting the phone (after pressing Download), only way it worked for me.
Good luck!
I managed to sort this out quite simply in the end!
On the Lenovo A830 (and presumably other Lenovo Android phones?), you enter recovery by pressing power and then pressing volume up / down together after a short pause. The short 1 - 2 second pause is important, because if you try and press them at the same time or in quick succession it doesn't seem to work.
I then installed MIUI V5 from the SD card followed by Google Apps after a reboot. In order to get MIUI to install, I had to remove the assert check at the top of the update script, because this seems to erroneously check for the A820 (even though there isn't currently a port for this device?). It's working excellently with two exceptions - I am unable to select the SD card as a storage device, and Google Play store is not searchable (it causes a Force Close).
tominglis said:
I managed to sort this out quite simply in the end!
On the Lenovo A830 (and presumably other Lenovo Android phones?), you enter recovery by pressing power and then pressing volume up / down together after a short pause. The short 1 - 2 second pause is important, because if you try and press them at the same time or in quick succession it doesn't seem to work.
I then installed MIUI V5 from the SD card followed by Google Apps after a reboot. In order to get MIUI to install, I had to remove the assert check at the top of the update script, because this seems to erroneously check for the A820 (even though there isn't currently a port for this device?). It's working excellently with two exceptions - I am unable to select the SD card as a storage device, and Google Play store is not searchable (it causes a Force Close).
Click to expand...
Click to collapse
Hello,
How did you manage to fix the reboot loop?I have the same problem,after a factory reset the phone just reboot like you said in first post...please help me fix it...
claudiuionel said:
Hello,
How did you manage to fix the reboot loop?I have the same problem,after a factory reset the phone just reboot like you said in first post...please help me fix it...
Click to expand...
Click to collapse
Hi I had similar "reboot loop" problem this morning after a phone factory reset.
I have no idea how I solved that but the following was the steps I tried:
1. Install the MTK6589_PdaNET_ADB_VCOM_Drivers. Skip the USB connection during setup. Start the PdaNET after setup finished.
2. Insert battery inside the phone and connect the phone with the computer by USB
In my case, the phone reboot loop once, and the lenovo screen appeared in the second restart. The phone hanged. I unplugged the cable, took out the battery, insert the battery again and start the phone normally again and it is working now.
I recommend installing the recovery rom after you have fixed the phone.
Goodluck

[Q] Bricked Lg G2

Hi there! I'm a stupid-stupid person. I was trying to get Lollipop faster, so I tried to flash lollipop on my phone.
I managed to root it, but haven't done any backup, except for media and contacts.
I'll try to explain what I've done.
So I rooted the phone, entered the download mode and then I tried to flash it using LG Flash Tool 2014.
When in download mode, it was stuck at 0%, so I didn't wait to go ahead, I tried to flash it.
Now, the flash failed several times. The phone was alright then.
Further, I tried again and at some point something happened, it got to two percent, it wrote COM4 and then it failed. It might have been my antivirus that stopped the process, I'm not sure.
Well, now I have a useless phone. It keeps showing the LG logo.
The hard reset doesn't work, it's not recognized in Device manager, and it doesn't work download mode.
When I try to power it off it does so only after a long press. At first, when the screen goes black, if I release the power switch, then it will reboot again. If I press it long enough, the phone will power off.
I'm desperate, of course.
The phone was running Kitkat.

Pepsi P1S corrupted eMMC?

Hello
Yesterday i have recieved the Pepsi (Koobee) P1S. it was full of bloatware so i decided to flash a modded rom. After i realized that this custom rom is only in english and chinese (Im German) i wanted to switch back to the original. But then i made the biggest mistake: I have flashed the false rom (CM for Mt6592 CPU but false Smartphone). After that i have flashed the right original rom again. but a strange Error appears: the Phone boot up normaly and then freeze and reboot by itself..over and over again. But not at the same step. Sometimes it freeze during the Bootanimation..sometimes it boot up completly and i can swipe through the Screens (for about 10 sec). When i push the standby button (Display went off) the Phone stays in this mode and dont freeze.
the i flashed TWRP and try to wipe the phone. Even in TWRP it freeze, but not during the wipes or in the Boot Mode slelect screen.
I Have a friend with the same phone. Is it possible to copy a complete backup (eMMC etc) to my phone? Or someone had a Idea what i can try next? I have flashed different roms (for this phone) so many times, but the error is still there.
Please help me.. It should be a present for my GF birthday today
SOLUTION
I downloaded the flashtool that flashes MTK Devices then searched google for Pepsi p1s needrom and downloaded the original firmware scatter file, turn off the P1S unplug it from USB,...Start the flashtool, and search the firmware will be second search bar select search and browse your computer for the firmware you downloaded from needrom, then you will see it load all the files.....there is a button bar that has an arrow open the arrow and select firmware update, then hit the green go button after you hit the green go button plug in your powered off PEPSI P1S ....it will give you a red bar on the flashtool at bottom first, then it will format your device properly, then install all the necissary files, its real quick about 3 minutes, after a box will pop up on the screen and say OK with a big check mark, at this point you can unplug your phone, power it up and wait about 3 minutes, everything will be normal again. So sorry I would post the links however I forgot my password and username that I was using for many years and forgot my recovery email as well.....so if you google it you can find the stuff, just hope I helped with the proper method of flashing......good luck, let me know how it goes.
Thanks but i know how to flash the firmware with SP Flash Tool. i have flashed the P1S with 3 different roms..but always the same error (freeze and reboot at different points)
Are you using download mode? Or firmware update? The reason I ask is download mode always gave me a bootloop, but when switched to firmware update mode it formats the device correctly and fixes the file structure, try firmware update mode.
Im using "Format All + Download"
Try using firmware update mode, let me know what happens.
same problem...freeze (at different points) ans reboot.
here you can see what happen:
https://www.youtube.com/watch?v=J1oFkgUwtOo
try this! P1
power off
then hold power button + volume down
the boot mode will appear
select recovery
it will show you no command
then pres power button first and the press volume up
now you device is on recovery
then select
wipe data/factory reset.
Blueray88 said:
Hello
Yesterday i have recieved the Pepsi (Koobee) P1S. it was full of bloatware so i decided to flash a modded rom. After i realized that this custom rom is only in english and chinese (Im German) i wanted to switch back to the original. But then i made the biggest mistake: I have flashed the false rom (CM for Mt6592 CPU but false Smartphone). After that i have flashed the right original rom again. but a strange Error appears: the Phone boot up normaly and then freeze and reboot by itself..over and over again. But not at the same step. Sometimes it freeze during the Bootanimation..sometimes it boot up completly and i can swipe through the Screens (for about 10 sec). When i push the standby button (Display went off) the Phone stays in this mode and dont freeze.
the i flashed TWRP and try to wipe the phone. Even in TWRP it freeze, but not during the wipes or in the Boot Mode slelect screen.
I Have a friend with the same phone. Is it possible to copy a complete backup (eMMC etc) to my phone? Or someone had a Idea what i can try next? I have flashed different roms (for this phone) so many times, but the error is still there.
Please help me.. It should be a present for my GF birthday today
Click to expand...
Click to collapse
I have noted one thing.
when I update supersu to play store and reboot it goes in bootloop.
so I recommend not to upgrade or even to make unroot just after removing apps with viruses

LG l70 d320 bricked/bootlooped pls help

Please help,
I have stock rom rooted LG l70 d320. It works propperly but now I applied exposed module called "Commandr for Google Now
", then rebooted but...
Phone just started vibrating every second once, but screen was still black.
It continues about 10 minutes and still same...
Than i pull out my battery and place it back. Again it start vibrating but nothing more.
I tried to hard reset (volume down and power button), but it only stopped vibrating for the while.
And I tried to connect to PC (i want ro flash stock rom)too, but PC cant detect my device. So I cant use ADB to recovery
Thank you in advance for your answers.
Follow this
Follow this steps as indicated in my post. you'll need the data cable/pc cable came with your phone
https://forum.xda-developers.com/android/help/help-bootloop-lg-l70-d320-t3304382#post70962321

Stuck in bootloop Neffos X1. No recovery mode.

Hello community,
I haven't posted here before, so I hope I'm not doing anything wrong.
I have a problem with my Neffos X1 and after browsing the internet for hours nothing helped so far, so I hope some of you can help me out.
My phone is stuck in a bootloop since yesterday evening. I haven't done any updates or new installations recently, so it just happened out of the blue. It loads till the Neffos logo and then restarts over and over again.
Since I can't take the battery out, I tried letting it run out of energy and then restart, but as soon as I connect it to a power source the bootloop will start again.
I read a lot about getting it in recovery mode or to try and flash it, but no matter what combination of buttons I try, nothing is happening. The phone basically doesn't react to anything and just keeps restarting. The only thing I noticed is, that when pushing both volume keys the screen will just stay black (no restarting), but after letting go the bootloop will start again.
I tried flashing it via SP Flash Tools, but the phone also doesn't react to it.
Lots of troubleshooting guides also require, that I have rooted my phone in the past, unfortunatly I haven't. I also read about unlocking the bootloader, but since my phone isn't reacting to any buttons and my laptop also doesn't seem to recognize my phone (probably because it doesn't boot proberly), that doesn't seem like a solution either.
To summarize: I'm stuck in a bootloop with no recovery mode, no rooting, no unlocking bootloader, probably can only use my laptop to do anything remotely.
So, is there anything you can think of, that might help me get out of the bootloop? Or ideas of what I may did wrong when trying the other solutions?
Thanks for any help in advance.
Same problem
I have the same problem, I have tried all kinds of soft reset and nothing is working I also opened the phone to check if anything was not connected properly, but everything seems fine except for that infinite loop. Please help!
Shotzo said:
I have the same problem, I have tried all kinds of soft reset and nothing is working I also opened the phone to check if anything was not connected properly, but everything seems fine except for that infinite loop. Please help!
Click to expand...
Click to collapse
Try this
Download phone's Stock Firmware onto your personal computer.
Install the USB MTK Drivers - NOT ANY OTHERS (skip if you have them already installed).
Download and Launch the Smart Phone Flash Tool (SP Flash Tool)
Click the Scatter-loading button to navigate to the Stock Rom you just downloaded.
Select the Scatter File from the extracted Stock Firmware on your computer.
Select the Download Only in the SP flash tool option
Click the Download button to start the Formating process.
Connect your phone via USB to the computer>> holding volume + and volume – button of your phone at the same time or holding power button only so that the flashing process will starting working
Patiently wait for your device to be formatted.
After the formatting is done, a Big Green button will pop up on the SP Flash to show that.
Unplug phone and boot it up.
If you have a boot loop after booting your device, boot into recovery mode and do a factory reset.
Voila, you are all good.

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