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well pop the back off ,remove the battery.then there are 2 screws that hold the modem in place.remove them and very carefully pry the modem off.there are 2 plastic tabs near the bottom of the phone 1 on each side.careful or they will break.`then there are 4 screws on each side of the screen,when opened..they are under little rubber pucks.remove them and separate the 2 half's..Unplug the flex cable from the screen and carefully remove the screen and camera assembly.be carefully not to tear off the flex cables that hold the 3 buttons on the screen in..then if you'll turn the phone back over.where the battery goes in on the hinge .you'll see another screw.remove that and flip the phone over again.carefully pop the chrome hinge pin out.then you'll be able to separate the 2 half's.then there are 6 little metal tabs that hold the keyboard in place.pry them up and carefully remove the keyboard and flex cable.careful around the hinge,where the flex cable runs threw. now moving on to the modem, on the bottom you'll see 2 little plastic tabs carefully open them and remove the brass retaining wire and the modem will then come out..get your new covers and reverse this process and you'll be good to go.
The LCD flex connector is very sensitive. 4/5 of the RAZR screens I see go out are due to a loose flex connection. It's super easy to fix it. Take off the battery door. There are two T6 screws. Take them out and pop off the bottom of the phone. There are two flex cables: one for the keypad, the other for the screen. Connect the flat cable (screen cable) first. Then connect the bent (keypad) cable. Put back together. Voila.
1), remove the bottom part (completelly)
a) do you know how to open the bottom part?
2) remove the cover on the top part
a) disconnect the keypad LCD Flex Cable
3) remove the two chrome "big screws" that allows it to open and close
4) CAREFULL!!!! WHEN YOU READY TO SEPARATE THE TOP PART FORM THE BOTTOM!!
a) make sure the Flex cable is loose, and take a screw driver, push the ping on the other side (try to do this at the edge of a desk or table) keep pressure until this side pops out. KEEP IN EYE ON THE OTHER SIDE!! that the Flex cable does not get cut out by separating the two sides.
5) Replace and pop the two sides together.
6) Put everything back together.
let me know if I need to be more specific
It's fairly simple to replace a flex cable if that's the culprit.
This is a flex cable: http://cnn.cn/shop/motorola-razr-keyboard-flex-cable-p-300.html
It's got adhesive on it so if you plan on repairing yours, you need to peal your old one off. That's really no big deal, the thing you REALLY need to worry about is damaging your keypad when removing it from your housing. You might want to order a new one just incase for that very reason.
Be aware that unlike the V3c's flex cable which is a separate cable that connects to the main board to go up to the upper part of the phone, the V3's keyboard flex has its cable attached, which means you must open the top portion of your phone as well. Opening the bottom part of the phone is simple. Opening the top part is where things get slightly tricky, if you're not careful you could really damage your phone.