Forums / Embedded GSM Development / GSM 900A SIM problem - Rickey's World of Microcontrollers & Microprocessors

Discussion in "Embedded GSM Development" started by mcsan Mar 7, 2014.

mcsan

[ Fresher ]

Fri Mar 07 2014, 02:18 pm

#1

We are using SIM900A module. We are having two vodafone sim cards. Earlier purchased card works fine and we get +CPIN : READY message. However, newly purchased card shows +CPIN : NOT READY message. Actually, both cards are working fine when inserted into mobile phone.

Can you suggest what is happening?

Maulik

ajay_bhargav

Site Owner

Tue Mar 11 2014, 11:23 am

#2

You should contact simcom for this. It could be related to module firmware. What kind of sim card is it? 32k/64k?

RSS 1.0 RSS 2.0 RDF

Powered by e107 Forum System

Post A Question

Share A Project

Downloads

Automatic Railway Gate Control by: Sharanjit Singh in: 8051 Projects
Tue Oct 15 2019, 12:47 pm
Yet Another DTMF Controlled Robot by: Er. Sharanjit Singh in: 8051 Projects
Tue May 07 2019, 02:45 pm
Simple 3 Digit Temperature Meter by: Rakesh Suthar in: PIC Projects
Sat Jul 05 2014, 11:45 am
Electronic Voting machine with Managed Control Unit (Project Report Included) by: Shivani, Geetika Gupta, Vibhore Aggarwal, Megha Singh in: 8051 Projects
Sat May 17 2014, 07:46 pm
LED Scrolling message Display using 8051 by: Pratik Suthar in: 8051 Projects
Thu May 08 2014, 04:28 pm

Comments

Pure Sine Wave Inverter Using Atmel 89S2051 by: Anthonyvab

Wed Apr 17 2024, 08:51 am
Pure Sine Wave Inverter Using Atmel 89S2051 by: Jerrydauck

Fri Mar 01 2024, 08:51 am
Pure Sine Wave Inverter Using Atmel 89S2051 by: DennisVatry

Thu Feb 22 2024, 10:04 pm
Pure Sine Wave Inverter Using Atmel 89S2051 by: DonaldPaids

Thu Feb 22 2024, 03:45 pm
Pure Sine Wave Inverter Using Atmel 89S2051 by: Victornwh

Mon Feb 19 2024, 12:01 pm

gtaletrzua

Fri May 03 2024, 10:55 am

Clydehet

Wed May 01 2024, 06:44 pm

Davidoried

Wed May 01 2024, 06:11 pm

KevinTab

Sun Apr 28 2024, 05:35 am

Tumergix

Sun Apr 28 2024, 12:59 am

StevenDrulk

Sat Apr 27 2024, 08:47 pm

StephenHauct

Sat Apr 27 2024, 09:38 am

Adamsaf

Sat Apr 27 2024, 07:12 am