Mobile Phone Insert Sim Problems Learning way Easy

SIM (Subscriber identity module)

     SIM have very important part of Networking, in your sim is not working proper in your cell phone then you cant make a call due to no network, sim can provide the network to cell phone, that who is the provider of this networking company about all data stored in sim, so for Network use and make a call sim is very important, in this lesson we will learn about insert sim or no sim problem in our cell phone or tablets etc,

(IRFAN WAZIR)

SIM IC is very important in cell phone because mostly cell phone has IC giving Continuity link to sim terminals, then sim can work properly.

In electronics it usually IC stands for Integrated circuit

Nokia Sim IC:

If this IC damaged then mobile showing INSERT SIM, Insert Sim Card, No Sim, Sim Rejected etc.

After Resold, Change IC or make a simple wire jumper on it then sim will work properly and we can make a call all over the networks.

(IRFAN WAZIR)

SIM Jacket is the source of collect the data from SIM card and sent to programing IC for take action on it, sim jacket terminals toch the pads of sim card and get the information from it who is required for cell phone CDMA sets, Ipads, Tablets, etc. All devices who can support the sim they have sim jacket in it for insert sim card. (IRFAN WAZIR)

How to work sim in any device, every sim has 6 terminal as like last picture over, 4 terminal has continuity from any type of IC and 5th terminal is Empty or not appear and 6th and last terminal is a ground terminal, when all terminals touch the sim card pads then make a connectivity between both and then device can get data from sim card.(IRFAN WAZIR)

Why Devices Showing Insert Sim Card because device has a sim jacket, chek the sim jacket that perhaps any terminal damaged, if jacket damaged then replace the sim jacket, if jacket not damaged the check sim jacket terminals with multimeter, if you can't use multimeter then you can't chek the continuity of sim jacket terminals, please learn first multimeter use, then after checking of continuity and we found that two terminals are has no continuity in them, the check the device links coming from, if device has an IC to provide links to programing chip, almost IC damaged, if Sim IC damaged then resold or change Sim IC, if you not have other sim IC then make Jumper as like below picture:

Nokia 5030 Insert Sim Solution

It is a picture solution of nokia 5030 insert sim, in this picture we have make a jumper on sim ic and shows in the picture how can you make a jumper , because sim ic was a simple linked circuited ic, it has no programing in it so we can make change alternative with wires to make continuity who need to device for collect the data from ic, and search network and make call for us, 

Remove, Sold, Resold and Changing of IC, we will teach you in next lesson

Please Learn Completely Repairing for doing something. it is very easy and interesting.

(IRFAN WAZIR)

Links Between Sim Jacket and Sim IC

According to Sim jacket it has 6 terminals, all terminals are important, 5 terminal has continuity and 1 terminal in mobiles has no continuity it is empty supporter for 5th terminal as like picture, if you have changed IC but continuity not found in terminals or terminal so check links between sim jacket terminals and sim IC, because if between jacket and IC any one link is damage then Sim can't work properly, so our first work to check continuity between them, multimeter is a better tool for source of chek the continuity between them, now we checking with multimeter and we found a link breakage in any point then we will make jumper on break link, and solve our problem who is very need full to use sim in device and enjoy it.

 (IRFAN WAZIR)

 

In Case of No Sim IC mostly China and new trend of disposable mobile phone has no sim ic, the what we can do for sim solution, please watch this image it has no sim ic but it has some sim resisters who are giving link to UEM or Programing IC and making connectivity between among them, if sim jacket damaged so change sim jacket, but there is no sim jacket damage so check now continuity sim jacket terminals and resisters, if any resister damaged you can change resister easily if you not have resister then make a jumper both points, so now you cheked all resisters that one you repaired and other are fine so sim jacket terminal found a continuity better, if after repairing the resisters any point has no continuity then repair the link who is damage and be a successful repairing technician.

Nokia 1200, 1208, 1209 Insert Sim Solution

Nokia 1200 Insert Sim Solution
Nokia 1208 Insert Sim Solution
Nokia 1209 Insert Sim Solution

In this Picture we have make the wires jumper in Nokia 1200, 1208, 1209 PCB, who is very easy and interesting, Sim IC also Showing these points and Sim jacket is also showing us the all terminals, +positive point, 3 sim ic continuity points, 1 ground point and 1 point has no continuity it is totally empty, so all point if linked then sim will work. (IRFAN WAZIR)

Nokia 1110, 1112, 1110i, 1600, 6030 Insert Sim Solution

another sample of sim ic jumpring..

 (CONTENTS WRITTEN BY IRFAN WAZIR)