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check your laptop to be sure that your wireless capability is on, might be a switch on the front or it may also be on the keyboard that has a light. Otherwise check with a computer expert or with the manufacturer's manual to find where the wireless on/off button or switch is if it is not readily apparent.
if you recently accidentally drop your phone then you need to open it and reheat the cobba i.c or known as the audio i.c for some cellphone experts. you need to have the following things. hot air and a flux. first you need to put on a flux above the audio or cobba ic and reheat it using the hot air. set the hot air to its proper setting and slowly reheat the audio ic for 2 to 3 minutes. and then let it cool for 3 to 4 minutes and then close back your phone. then for sure it gonna have a signal.be careful of reheating the audio or cobba ic. since its sensitive and don't try to move it, just reheat it. coz if incase you move it, it will cause you phone to recieve a contact service error.
I will get vary happy to help u. If u are a Technician then open ur mobile handset by T-6 screw driver and firstly wash ur network antina and IC areas by a toothbrash with PCB cleaner.Check the network connecter make a jumper from network connecter to connecter pins by micro soldering IRON and give some hot air to network IC with pest.If u are not a technician then its better to go ur nearest NOKIA care center.If u are saticfied withmy information then please vote me. Thank you for your visit.
Go to seting-phone setting-network, Choice search network manual.if show all operator the damaged are on PA (transmition IC).but if no operator found the damaged could be on antena or RF IC(as a receiver network)
PC with 300 megahertz or higher processor clock speed recommended; 233
MHz minimum required (single or dual processor system);* Intel
Pentium/Celeron family, or AMD K6/Athlon/Duron family, or compatible
• 128 megabytes (MB) of RAM or higher recommended (64 MB minimum supported; may limit performance and some features)
• 1.5 gigabytes (GB) of available hard disk space*
• Super VGA (800 x 600) or higher-resolution video adapter and monitor
• CD-ROM or DVD drive
• Keyboard and Microsoft Mouse or compatible pointing device
If your not sure what to do at this point you probably should stop right here, however if your bold enough to try this, remove the back cover, I believe there are 6 (six) screws in total, there is also a small metal contact that touches the main circuit board on the back side, that also connects to the antenna, most often a springy piece of gold plated metal attached to a solid threaded nut, where the antenna is attached that fits snugly into the back cover of the phone when the cover is installed the nut is secured and won't fall out. This contact could be on the nut or on the main board if you bent it out a bit to make better contact, you will most likely fix your phone. Cheers!