In this page i will write about custom Rom.
I am presently using RR rom on my Lenovo K4 note. This custom rom is based on CM13 Rom. I am using this Rom from last couple of days i have faced some problems and fixed some of those problems.
This is the only stable custom Rome for Lenovo K4 note.
what is not working is NFC and Theater Max technology everything else is working fine.
First problem I found is The IMEI problem and NVRAM x10 errors.
this are major problem while you flash new rom which is based on Marshmellow or CM13.
I have searched for that problem but no solution every where saying copy paste nvram folder.
but not working.
NVRAM x10 problem can be fixed by copy paste but not working for IMEI.
When i flashed my device to stock rom i got my IMEI back. so i thought that there is some problem in library or a permission problem.
to Fix that problem in Custom Rom i have rooted my device and checked the root folder; /nvdat folder ;/data folder and /data/nvram folder.
checked those folder property and permissions . I found that the /data/nvram folder is linked with /nvdata folder.
so now i got that poit why the IMEI got lost in custom rom.
to fix i have followed the following steps.
Step 1:- While installing Custom rom through TWRP do not delete data from "NVDATA" folder
now flash rom as usual .
Step 2:- If you are not facing any IMEI lost or NVRAM problem then skip following steps your rom
is bug free.
Step 3:- Most of cusrtom rom comes with root explorer if not the download and instll give root
permission.
Step 4:- Go in root and look for nvdata folder; now long press on that folder and select link folder.
Step 5:- now go to data folder(/data) and tap on "create link here" .
Step 6:- Now delete nvram folder from /data folder and rename that linked folder nvdata to nvram
Step 7:- wait for some time and check for IMEI if still missing then go to /data/nvram/ and change
permission of 'md' folder from 770 to 771.
if still problem exists then again flash to stock upgrade to Marshmellow and get root access and take copy of nvdata folder in sd card or some where else safe. and check every folders permissions remember those permissions
now follow above steps and still not working then copy that folder which you have copied in sd card and replace in root folder and wait still not working change permissions of that folder.
that's it this worked for my device Lenovo K4 note.
this will work for any MTK devices.
let me know in comment section that is it worked for you or not?
NOTE: - above method is only for CM13 for marshmellow based rom not for lollipop Rom because in lollipop there is no problem like that.
I am presently using RR rom on my Lenovo K4 note. This custom rom is based on CM13 Rom. I am using this Rom from last couple of days i have faced some problems and fixed some of those problems.
This is the only stable custom Rome for Lenovo K4 note.
what is not working is NFC and Theater Max technology everything else is working fine.
First problem I found is The IMEI problem and NVRAM x10 errors.
this are major problem while you flash new rom which is based on Marshmellow or CM13.
I have searched for that problem but no solution every where saying copy paste nvram folder.
but not working.
NVRAM x10 problem can be fixed by copy paste but not working for IMEI.
When i flashed my device to stock rom i got my IMEI back. so i thought that there is some problem in library or a permission problem.
to Fix that problem in Custom Rom i have rooted my device and checked the root folder; /nvdat folder ;/data folder and /data/nvram folder.
checked those folder property and permissions . I found that the /data/nvram folder is linked with /nvdata folder.
so now i got that poit why the IMEI got lost in custom rom.
to fix i have followed the following steps.
Step 1:- While installing Custom rom through TWRP do not delete data from "NVDATA" folder
now flash rom as usual .
Step 2:- If you are not facing any IMEI lost or NVRAM problem then skip following steps your rom
is bug free.
Step 3:- Most of cusrtom rom comes with root explorer if not the download and instll give root
permission.
Step 4:- Go in root and look for nvdata folder; now long press on that folder and select link folder.
Step 5:- now go to data folder(/data) and tap on "create link here" .
Step 6:- Now delete nvram folder from /data folder and rename that linked folder nvdata to nvram
Step 7:- wait for some time and check for IMEI if still missing then go to /data/nvram/ and change
permission of 'md' folder from 770 to 771.
if still problem exists then again flash to stock upgrade to Marshmellow and get root access and take copy of nvdata folder in sd card or some where else safe. and check every folders permissions remember those permissions
now follow above steps and still not working then copy that folder which you have copied in sd card and replace in root folder and wait still not working change permissions of that folder.
that's it this worked for my device Lenovo K4 note.
this will work for any MTK devices.
let me know in comment section that is it worked for you or not?
NOTE: - above method is only for CM13 for marshmellow based rom not for lollipop Rom because in lollipop there is no problem like that.
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