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Xiaomi Redmi 4X (Qualcomm)

Posted: Wed Sep 06, 2017 2:55 pm
by schoof

I successfully enabled rSAP on my new Redmi 4X MIUI Global with Qualcomm-Snapdragon-CPU. My Volkswagen RNS 510 phone works great with my SIM now!

I used this solution: ... ccess.html
It was a hard way to get the "sap_security_restrictions" into the phone.

But now, it works without the rsap-software!
It would be nicer if the software would do all this work implementing the sap_security_restrictions.
Nevertheless the rsap-Software is great - I used it noch my htc one X!

Re: Xiaomi Redmi 4X (Qualcomm)

Posted: Sun Nov 12, 2017 1:17 am
by noogi
Every time I'm trying to copy sap_security_restrictions into nv/item_files/modem/qmi/uim folder - QPST crashed.
Test mode enabled - no difference.

I get into diag mode in two different ways - vol+ and power on (and stay on screen witch Chinese text) and with dial *#*#13491#*#*
No difference here.

Please share with us, what You do exactly.


Re: Xiaomi Redmi 4X (Qualcomm)

Posted: Sun Nov 12, 2017 6:30 pm
by noogi
Another computer (win 10 64bit) that same effect.
I check, that test mode survives restart, but QPST crashes whet trying to put file in folder. I wonder if is really needed (test mode).
Looks like windows related problem:
error: EFSExplorer.exe, ver:,
error in module: MSVCR100.dll, ver: 10.0.30319.1,
exception: 0x40000015
offset: 0x0008d635

Re: Xiaomi Redmi 4X (Qualcomm)

Posted: Fri Nov 24, 2017 9:42 pm
by noogi
I finally succesfully copy sap_security_restriction file into the phone!!
What I did wrong? I use MIUI 9 insted od MIUI 8 as mentioned by schoof.
Redmi 4X needed Factory Test Mode to do that.


Re: Xiaomi Redmi 4X (Qualcomm)

Posted: Wed Dec 13, 2017 11:12 pm
by tom74
Hi! I use Miui 9.1 is there a solution install?