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[GUIDE] unbrick your phone Iris 504Q and also GAIN BACK WARRANTY

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By UzUmAKI_NaRuTo1, Senior Member on 28th May 2014, 06:56 AM
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25th July 2015, 06:26 PM |#11  
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Quote:
Originally Posted by pd89

Hello Guys,
My lava 504q was bricked so i was using above method for unbricking it step by step, but got following error after connecting the phone,

"Image PRELOADER checksum failed!Checksum reference value(0x2f771) in the config ini file.
please re-fill correct checksum values in checksum.INI under tool folder and re-load scatter file again!"

Same error also include Image like UBOOT, BOOTIMG,Recovery, LOGO, ANDROID, CACHE, USRDATA and FAT

I used unbricking method on Windows 7 and Windows 8.1 desktop.

Right now i am in deep trouble and you guys are my last hope.
So please please help me.
Thanks in advance



Delete checksum file in that folder.. And then try.. It will work.
 
 
25th July 2015, 08:50 PM |#12  
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Dear Shailesh,
Thanks for helping me out. I did what you have suggested but having same problem.

May be sp tool is not detecting my phone as after clicking firmware update same error pop up even though I didn't connect my phone or may be I am missing something?

I bricked my phone when I was restoring NAND back but after restoring it phone did not boot up.
26th July 2015, 06:58 PM |#13  
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Oh, then it may be some error in downloaded file or in driver installation or in emmc scatter file .. but i m not sure.. couse once checksum problem happens with me, but every thing worked fine after delete checksum file..

---------- Post added at 05:53 PM ---------- Previous post was at 05:52 PM ----------

And if phone still going in recovery then just flash a fresh rom instead of firmware Flash..

---------- Post added at 05:58 PM ---------- Previous post was at 05:53 PM ----------

Also share your problem in this fb group.. may be some friends help you....

https://m.facebook.com/groups/409549...762?view=group
26th July 2015, 08:21 PM |#14  
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The problem is I am not able to open in recovery mode through phone.

As you said I will download different version of ROM and try it. Let's hope it works.
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28th July 2015, 05:05 AM |#15  
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Quote:
Originally Posted by pd89

The problem is I am not able to open in recovery mode through phone.

As you said I will download different version of ROM and try it. Let's hope it works.

Then only firmware flash will work, not rom......
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29th July 2015, 08:36 AM |#16  
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Quote:
Originally Posted by shailesh178

Then only firmware flash will work, not rom......

Downloaded new firmware and it WORKED!!!!

I think there was problem in firmware i downloaded first time. But when i downloaded it again and followed above instruction, my phone got unbricked.

Thanks Shailesh for guiding me through. Also thanks to @manikkumar20 and @UzUmAKI_NaRuTo1 for this tutorial.
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gain warranty, lava iris 504q, unbrick

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