Guide and Manual

Here is tips to repair nokia cellphone for "restriction code" problem

1. Check cellphone for water damage, clean cellphone if needed

2. Contact your service provider and ask the unlock code, if youve been a customer, they should give you the code for free

4. If it displayed number , or your imei number displayed normall, you need to open sim lock ( open simlock need repair tool box )

5. If the problem not solved you may try this code for unlock

when you are doing mobile phone repairing you have to get neccessary tools for that. here are many different variety and Cellphone Repair Tools. you can get these tools from your base town or some electronics shop. Not only that but also A lot companies offers online purchasing for such certain tools for beginning into business. You can choose which is which for such certain product.

 Basically these are the primary tools for you have to buy.

* Multi-Tester -  To measure Voltages, Currents and Resistance in electronic components.

* Screwdrivers -  To loosen the phones screws.

* Tweezers - To hold and pick small cellphone component parts.

* Soldering iron -  To solder / resolder  electronic parts.

* Soldering lead - To bonds Electronic components.

* Soldering Flux and Paste -To tightened soldering quality.

* BGA Rework station - Applied Heat  to soldering, remove and replaced parts and  IC chips.

* Re balling Kits - Tools for reballing IC bumps, this composed of Stencil plates, Ball Leads and Spatula

* DC Regulated Power Supply- Used to substitute battery voltage when working on hardaware troubleshooting.

* Flashing and Unlocking Device- it is Software Tools that used to unlock and flash mobile phone programmable circuits.

* Cables and Wires - Used as an Interface from PC to cellphones when working on like flashing, unlocking and jailbreaking