[Q] Bootloop issue - Android Q&A, Help & Troubleshooting

Hi Guys,
first of all I'm really noob in this part and I need help. I have gone through all bootloop topics but no one can help me. :crying:
My model is Star S4.
I have rooted it succesfully. I found here a description for changing the DPI of my phone as per this tutorial:
http://forum.xda-developers.com/showthread.php?t=2458369
Everything went fine until the reboot operation.
I have a newly installed Windows 7 64-bit can identify my phone as MT65xx Preloader, I have tried to install the drivers too, but Windows says there are no driver in the folder. I think the main thing is that I have corrupted build.prop file of my phone and that is why it wont start.
Please help me in this case.
Many thanks in advance.

Related

[Q] Spreadtrum SP6820a Sprd S6010 (Galaxy Duos Clone?)

How to root please?
Also, anyone know how to reflash this models firmware?
I think I stuffed 1 of them up trying to root.
Attached is a picture of the model.
Thank you. Have a nice day.
Hi there !
I have started a new thread on how to root spreadtrum devices here: http://forum.xda-developers.com/showthread.php?t=2165554
May be you could find a way to root yours.
I also need you to test an idea to root them, but I'm not sure if it will work.
Because you already have a bricked one, you can try this idea without risking your device (and maybe unbrick it by doing a backup of the others one and flashing this backup on it.)
How have you bricked it precisely ?
Spreadtrum SC6820
ElectronikHeart said:
Hi there !
I have started a new thread on how to root spreadtrum devices here: http://forum.xda-developers.com/showthread.php?t=2165554
May be you could find a way to root yours.
I also need you to test an idea to root them, but I'm not sure if it will work.
Because you already have a bricked one, you can try this idea without risking your device (and maybe unbrick it by doing a backup of the others one and flashing this backup on it.)
How have you bricked it precisely ?
Click to expand...
Click to collapse
Hi there, I recently got my hands on a Mobicel Titan, and after much unclear research, the best I can come up with is that it is a Spreadtrum SC6820a phone, hope I am on the right track. Anyway, my goal is to change the ROM on this phone as the software that Mobicel has bundled on their version of Android is way too much for the phone to handle. I have already rooted the phone using Z4Root successfully. Funny enough, the link you have is the very link I tried for the past week, I've tried ADB and Fastboot on both Windows 8 64bit and Ubuntu 12.10 64bit, and even ResearchDownload, all drivers were installed successfully, but when i try all methods to flash new ROM to the device, nothing seems to happen, even if I use ResearchDownload and follow instructions to the T, flash process doesn't start. After using fastboot to update CWM from Ubuntu 12.10, if I try to restart into recovery mode, it is then stuck on the Mobicel Logo. Is there a guide for the Mobicel Titan?

Please help to unbrick a Cube u27gt s tablet

Hi guys,
I just bought two brandnew Cube U27GT S (MTK 8127) tablets and tried to install a custom rom. Unfortunately the tab hard bricked while trying to flash it with SPFT. Now I can´t turn on the tab anymore - all black. I even can´t open the recovery mode and Win 7 doesn´t found the tab anymore, it shows unknown device in the device manager!?
Meanwhile I deinstalled all MTK drivers with usbdeview and installed them again with the help of the second tab. But it has no effect of the damaged one it´s still an unkown device.
Maybe anyone has an idea how to unbrick it? Would be great to get any help! :crying:
No hope anymore?
I have the same problem can only get into recovery, factory reset does seem to do anything still hangs on boot, looks like I need to update via sdcard?

Help with chinese 7840

Hi All,
I just got a wonderful Venue 8 7000 (7840),
problem is ONLY after double upgrading it (4.4=>5.01=>5.1) I found it's not international version, as I supposed, but is somehow tuned for china, so no google store/apps/account and lots of chinese apps I don't really need.
After searching around here, I found I should perform following steps,
please confirm if I'm right:
1) root the device using this procedure
http://forum.xda-developers.com/showpost.php?p=59203577&postcount=5
2) connect in tethered cwm and restore an original image like the one linked here
http://forum.xda-developers.com/dell-venue/general/dell-venue-8-7840-factory-fresh-t3026691
If correct, I'm having problem with both steps,
first I installed ADB drivers and rebooted tablet in fastboot mode
then I tried to follow steps at 1), but Intel Platform Flash Tool cannot write
(ps I tried both with and without externad SD inserted)
I tried also the procedure here
http://forum.xda-developers.com/and...t-temp-cwm-t2975096/post57543924#post57543924
using package IntelAndroid-FBRL-07-24-2015.7z
The adb connection seems ok, but still cannot write temporary cwm and proceed
(tried both T3 and T4)
One more thing: I can't find the option to enable USB debugging... I've searched all options under Settings
Please help !
thanks in advance
I fixed my problems following this EXTREMELY USEFUL guide for rooting and installing english rom
http://forum.xda-developers.com/dell-venue/general/root-howto-dell-venue-8-7840-t3282532
thanks a lot!

Samsung 10.1 Can't do anything.

Hello everyone,
My name is Max, and i have a problem with a tabelt: note 10.1 GT-N8010.
I wanted to fix this tablet because its not booting anymore, its stuck at the logo. things that i tryed.:
1. i tryed to fix it with odin to install a stock rom< odin is finding my tabelt and its installing everything just fine but its still stuck at the boot logo. even after 30min
2. i tryed to unlock USB debugging but that fail. because ADB is not regonizing my tablet, even with the USB drivers installed.
3. i tryed to use the programm called SkipSoft ToolKit, but this tool kit is also using ADB. and like i sad ADB is not finding my tabelt.
Anyone who could help me with this problem, i have been searching XDA formus and google for 1 day now and didnt find any thing that helped me.
Thx for reading,
Regard Max
maxvg said:
Hello everyone,
My name is Max, and i have a problem with a tabelt: note 10.1 GT-N8010.
I wanted to fix this tablet because its not booting anymore, its stuck at the logo. things that i tryed.:
1. i tryed to fix it with odin to install a stock rom< odin is finding my tabelt and its installing everything just fine but its still stuck at the boot logo. even after 30min
2. i tryed to unlock USB debugging but that fail. because ADB is not regonizing my tablet, even with the USB drivers installed.
3. i tryed to use the programm called SkipSoft ToolKit, but this tool kit is also using ADB. and like i sad ADB is not finding my tabelt.
Anyone who could help me with this problem, i have been searching XDA formus and google for 1 day now and didnt find any thing that helped me.
Thx for reading,
Regard Max
Click to expand...
Click to collapse
I think you accidentally stumbled into the wrong forum. This one is for the P7500/7510 type 10.1 tablet... The very first one.
I'm betting you'll have better luck with your questions in the correct forum.
Sorry I couldn't help you more.
Best of luck.
Olivier V said:
I think you accidentally stumbled into the wrong forum. This one is for the P7500/7510 type 10.1 tablet... The very first one.
I'm betting you'll have better luck with your questions in the correct forum.
Sorry I couldn't help you more.
Best of luck.
Click to expand...
Click to collapse
awh thx,
im very sry that i did this, im kinda new here :/:angel:

Help Please! need to unbrick a Blu Vivo 5 Mini!!

Hello guys!
I've been trying and reading as much as possible and I haven't been able to bring my Viyo 5 Mini back to life, using SP FLASH TOOL, I have installed the drivers many times and in many different ways but nothing.
After a while looking up I found somwhere somebody said to deactivate the antivirus, I did it and it worked out but my phone ended up without IMEI and with the NVRAM error, so as it worked ONCE I tried to install a recovery to root it and fix these problems, but I got it bricked again, I tought I could rescue it again but after this it doesnn't work, the pc does the sound when I plug the phone but the SP Flash Tool does not start.
I install the drivers and they appear on Device Manager but they have the code 10 error saying the devices cant't start, only ONE works, the one that says Preload.
please someone help me I'm going crazy, I'm not very good at this but I used to handle it very well, it's this phone that is giving me trouble.
my pc it's on 64 bit and win 8, in case that info matters a lot, I have also tried running the SP Flash tool on XP (SP3) commpability
I have been switching the driver of the only device that seems to work to the others to see but still nothing.
thanks in advance for any help
the phone version again is Blu Vivo 5 Mini V050Q

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