I cant input unlock code to Lumia 900 - GSM-Forum

gge · 12-04-2012, 19:22

Hi
I need to unlock my Lumia 900 from ATT but I dont know how to input the unlock code, when I put a wrong card it says "sim error".
I have try with ##782# but nothing.
Thanks

gsmfathersuport · 12-05-2012, 06:31

1. Switch ON your phone with a non accepted simcard
2. Phone will ask you to Enter Unlock Pin
3. Input the 8 digit Unlock Code

gge · 12-05-2012, 17:01

Quote:

Originally Posted by gsmfathersuport

1. Switch ON your phone with a non accepted simcard
2. Phone will ask you to Enter Unlock Pin
3. Input the 8 digit Unlock Code

I tried but it doesn´t ask me for unlock codes.
It just says "sim error or unsuported"

Thanks

MR MOB · 11-09-2013, 06:31

Quote:

Originally Posted by gge

I tried but it doesn´t ask me for unlock codes.
It just says "sim error or unsuported"

Thanks

yess same problem here how to inter unlock code

gsmfathersuport · 11-09-2013, 11:40

Quote:

Originally Posted by MR MOB

yess same problem here how to inter unlock code

I had already given you, how to enter lumia codes.

:::GsmFather::: · 11-11-2013, 15:54

you should try hard reset first.

Turn off your Nokia Lumia 900. Press and hold the following buttons Camera + Volume down + Power until your phone vibrates, then release only the Power key and keep pressing the Camera + Volume down for a couple of seconds 4-5s.

12-04-2012, 19:22	#1 (permalink)
gge Insane Poster Join Date: Sep 2008 Posts: 64 Member: 854135 Status: Offline Thanks Meter: 17	I cant input unlock code to Lumia 900 Hi I need to unlock my Lumia 900 from ATT but I dont know how to input the unlock code, when I put a wrong card it says "sim error". I have try with ##782# but nothing. Thanks

12-05-2012, 06:31	#2 (permalink)
gsmfathersuport Product Supporter Join Date: Jul 2012 Location: everywhere Posts: 3,028 Member: 1786546 Status: Offline Sonork: 100.555 Thanks Meter: 394	1. Switch ON your phone with a non accepted simcard 2. Phone will ask you to Enter Unlock Pin 3. Input the 8 digit Unlock Code

11-11-2013, 15:54	#6 (permalink)
:::GsmFather::: No Life Poster Join Date: Mar 2003 Location: USA N China Posts: 2,257 Member: 24066 Status: Offline Sonork: 100.9 Thanks Meter: 574	you should try hard reset first. Turn off your Nokia Lumia 900. Press and hold the following buttons Camera + Volume down + Power until your phone vibrates, then release only the Power key and keep pressing the Camera + Volume down for a couple of seconds 4-5s.