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[Please help] Sim card not detected in Infinix x551 pro running kitkat 4.4

platinum6ix
platinum6ix
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#1

11-02-2017, 04:39 PM

Hello guys, please I need your help.

Please I successfully downgraded my Infinix x551 pro from lollipop (5.1) to kitkat(4.4). Everything worked normal expect for the fact that the phone was unable to detect sim card.
I flashed it back to lollipop and sim card was detected. I flashed it back to Kit Kat again and I got a notification saying “Sim card not detected”.

I thought the fault was from the Kit Kat rom. I downloaded and flashed another Kit Kat rom. Still the same thing, ”sim card not detected”.

Please how do I resolve this?

(This post was last modified: 11-02-2017, 04:40 PM by platinum6ix. )
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X3non
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#2

11-02-2017, 06:51 PM
(11-02-2017, 04:39 PM)platinum6ix Wrote:  Hello guys, please I need your help.

Please I successfully downgraded my Infinix x551 pro from lollipop (5.1) to kitkat(4.4). Everything worked normal expect for the fact that the phone was unable to detect sim card.
I flashed it back to lollipop and sim card was detected. I flashed it back to Kit Kat again and I got a notification saying “Sim card not detected”.

I thought the fault was from the Kit Kat rom. I downloaded and flashed another Kit Kat rom. Still the same thing, ”sim card not detected”.

Please how do I resolve this?

is the device still on the kitkat rom?
did you verify if the IMEI and baseband are intact while on the kitkat rom?

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platinum6ix
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#3

11-04-2017, 11:39 PM
The Imei was indicating invalid and I was unable to change it by using unclemobile or chameleon..

I didn't picture the band base.. Please do I need to flash back to kitkat to acquire the band base info?
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platinum6ix
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#4

11-04-2017, 11:41 PM
(11-02-2017, 06:51 PM)X3non Wrote:  is the device still on the kitkat rom?
did you verify if the IMEI and baseband are intact while on the kitkat rom?

The Imei was indicating invalid and I was unable to change it by using unclemobile or chameleon..

I didn't picture the band base.. Please do I need to flash back to kitkat to acquire the band base info?
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hovatek
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#5

11-06-2017, 10:30 AM
(11-04-2017, 11:41 PM)platinum6ix Wrote:  The Imei was indicating invalid and I was unable to change it by using unclemobile or chameleon..

I didn't picture the band base.. Please do I need to flash back to kitkat to acquire the band base info?

Here's what, backup your NVRAM and Secro while on lollipop. Would you need help with that?

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(This post was last modified: 11-06-2017, 10:31 AM by hovatek. )
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platinum6ix
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#6

11-09-2017, 01:38 AM
(11-06-2017, 10:30 AM)hovatek Wrote:  Here's what, backup your NVRAM and Secro while on lollipop. Would you need help with that?


Yes please.
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hovatek
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#7

11-09-2017, 10:16 AM
(11-09-2017, 01:38 AM)platinum6ix Wrote:  Yes please.

OK
Do you have TWRP for both Kitkat and Lolllipop?

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platinum6ix
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#8

11-11-2017, 11:34 AM
(11-09-2017, 10:16 AM)hovatek Wrote:  OK
Do you have TWRP for both Kitkat and Lolllipop?

Yes sir, I do.
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X3non
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#9

11-11-2017, 07:02 PM
(11-11-2017, 11:34 AM)platinum6ix Wrote:  Yes sir, I do.

flash the lollipop rom > flash TWRP > boot into TWRP > select backup [tick nvram and secro] > backup to SD card > flash back KK > flash TWRP > boot into TWRP and restore the nvram and secro backup

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platinum6ix
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#10

11-12-2017, 02:56 AM
(11-11-2017, 07:02 PM)X3non Wrote:  flash the lollipop rom > flash TWRP > boot into TWRP > select backup [tick nvram and secro] > backup to SD card > flash back KK > flash TWRP > boot into TWRP and restore the nvram and secro backup


Wow, look how easy the tutorial is, thanks in a million.
Please is that all the process?
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