1-what is preload backup ?
2-what is misc backup ?
3-what happen if restore efs from another similar device ? Does it clone the mac addresses , imei .... etc from the other device ?
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i know how to backup EFS partition for the i9500
but i don't know how to backup the m9kefs partitions !!!
i'v searched but i found a guide for i9505 only using terminal
anyone have an idea how to do this ?
miahegypt said:
i know how to backup EFS partition for the i9500
but i don't know how to backup the m9kefs partitions !!!
i'v searched but i found a guide for i9505 only using terminal
anyone have an idea how to do this ?
Click to expand...
Click to collapse
http://forum.xda-developers.com/showthread.php?p=41559366
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I recall an issue with the s3 about the efs partition being corrupted during flashing..do you know if the s4 has the same issue and should I back up the efs on the s4...thanks
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handman29 said:
I recall an issue with the s3 about the efs partition being corrupted during flashing..do you know if the s4 has the same issue and should I back up the efs on the s4...thanks
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Click to expand...
Click to collapse
Yes u must backup and keep it safe
http://forum.xda-developers.com/showthread.php?t=2379400
EFS BACKUP Made easy with app + (Settings,Tweaks,Tools,TWRP,etc.)
.
Do not open the same thread more then once.
Wayne Tech Nexus
A happy new year to all.
There were months when I'm reading, my confusion is almost total. I ask for help to you experts to help me solve this problem.
My s4 has i9505 imei NULL, I can not do any updates, ODIN does not recognize him, with cable UART does not work * # 7284 #, * the black page # 9090 #.
I think it happened a problem with the EFS folder.
I ask if it is possible, as a guide to prepare the phone, if there are folders EFS generic, how to upload to phone, etc..
Please help me, sorry for my English translated. Rolli17
If ur s4 is rooted with cwm recovery or u've any previous backup done by cwm recovery its easy to restore it.use the same recovery to restore
Backup.
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debbuger said:
If ur s4 is rooted with cwm recovery or u've any previous backup done by cwm recovery its easy to restore it.use the same recovery to restore
Backup.
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Click to expand...
Click to collapse
Thank you for having responded to me.
But the backup had not been done, if you can help me thank you
I m not an advance user but any developer on xda gonna help if u ask them through pm.t
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Questions and help issues go in Q&A and help section
Thread moved
Thanks
FNSM
Came from note 2 and there is like a zip file there that will run aroma just to back up or restore efs. Is there like that here? How can i back up my efs?
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b2dj said:
Came from note 2 and there is like a zip file there that will run aroma just to back up or restore efs. Is there like that here? How can i back up my efs?
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Click to expand...
Click to collapse
You can either use EFS pro or Custom Recovery ie: Philz/TWRP .Have a nice day.
Hello guys !! I have a i9500 I was on Official lollipop and tryed to degrade to kitkat And there i lost my imei and baseband as i didn't backup my efs I'm stuck now without no service !! Visited service centre but all they tell is to change the motherboard !!
Could anyone suggest something please
Anyone had the same problem please comment
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hv1997 said:
Hello guys !! I have a i9500 I was on Official lollipop and tryed to degrade to kitkat And there i lost my imei and baseband as i didn't backup my efs I'm stuck now without no service !! Visited service centre but all they tell is to change the motherboard !!
Could anyone suggest something please
Anyone had the same problem please comment
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Click to expand...
Click to collapse
as far as i know, if you dont have a efs backup, ur screwed
Won't others efs work? I hav my friends efs backup
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hv1997 said:
Hello guys !! I have a i9500 I was on Official lollipop and tryed to degrade to kitkat And there i lost my imei and baseband as i didn't backup my efs I'm stuck now without no service !! Visited service centre but all they tell is to change the motherboard !!
Could anyone suggest something please
Anyone had the same problem please comment
Sent from my GT-I9500 using XDA Free mobile app
Click to expand...
Click to collapse
You have to reinstall Official lollipop
If you flash and custom rom that make EFS Backup automatically, for example Ozcan ROM, you have to search a folder with this name "efs_Backup" in your "internal memory"
If you have this folder and backup
Make this instruction for downgrade to Kitkat: Here
But if i go to lollipop also still my imei and Baseband will be unknown !!
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hv1997 said:
But if i go to lollipop also still my imei and Baseband will be unknown !!
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Click to expand...
Click to collapse
No. also faced same problem while degrading.
But reflashed the official lollipop via odin and everything restored.
search my thread and you see how to downgrade to 4.4.2
i was downgrade to 4.4.2 and OK
hv1997 said:
But if i go to lollipop also still my imei and Baseband will be unknown !!
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Click to expand...
Click to collapse
No it's not so. Revert back to Lollipop and your baseband, imei will be recovered.
I have already experienced this, have been jumping between Kitkat and Lollipop since a week because of the same problem, I guess Lollipop has updated the EFS which makes Kitkat unable to read it properly.
Hope this helped you!
Unknown imei = go to lollipop, null, generic etc need a efs backup, however you can go to a mobile shop with a octopus box or something like that.
http://forum.xda-developers.com/galaxy-s4/general/i9500-easy-to-downgrade-official-t3036258
See if the steps in there are of help.
Hey i have the same problem on my i9500 .. i want to the care and they said the same (replace motherboard). Also they tried installing three different firmware's and i still have the same error ..unknown baseband and Imei null .. Did you fix your problem ?