NO SERVICE, yet 4 bars of signal

@Surendra

It's based on dBM and asu and not the bars you actually see. Even if you may see fewer bars you could have equal quality. The phones, based on different OS may be calibrated a little differently. It's best to contact your service provider and verify....

1. Your SIM is properly programmed.
2. Your PRL is updated
3. You have a recent SIM

Mark
Motorola Support

your phone antenna have some problem just open your phone if your phone out of warranty and make sure your antenna contact point is clean

try taking the phone into verizon sales and service store phone may need repair or replacement

You may want to contact your carrier and have them walk you through checking the network settings on the phone. Some carriers require some manual input in there, and it's possible these configurations got deleted or changed unintentionally.

This is a somewhat rare problem with this phone and I don't believe you are going to get it fixed at a decent cost. I have seen it before.

if u look  in the network settings, the 850 band is likely missing because u had a european destined phone dumped on you and you were misled or ripped off.
here is an easy fix, i just did it and im so much happier. went from no signal to 5 bars.

http://www.howardforums.com/archive/topic/808982-1.html

has the instructions, you will need a usb data cable to connect your phone to your computer.

if u look  in the network settings, the 850 band is likely missing because u had a european destined phone dumped on you and you were misled or ripped off.
here is an easy fix, i just did it and im so much happier. went from no signal to 5 bars.

http://www.howardforums.com/archive/topic/808982-1.html

has the fix

This is the case that your phone previous setup has changed back to default setting since the phone is sold to you. I have my MPX220 before and sync with Windows Xp Service Pack 2 and Activesync 4.2 and everytime I came back, they automatically recognize each other both PC and my phone. I think in your case, you need to start over again by uninstall the activesync and reinstall it and then reconnect your phone back to start from step one. I think that is only way to refresh the connection of your MPX220 and your PC. I don't know why you has these problems but usually when you are done your setup at the first time, your PC recognize your phone with the current setup you have made but when your phone is completetly dead, it wipes out all related info which is necessary for both parts to handshake and only uninstall the sync software and reinstall it from fresh can solve this problem. windows 2000 is not as stable as win xp about these tasks. If you can upgrade to wins xp, you will never worry about this again specially windows xp with service pack 2. I hope this help

did you put other sim, to that phone while you switch to nokia?

the problem you have guys was a hardware failure and we cannot fix it here probably your p.a. ( power ampli ) is faulty or the uem ( power and audio ic ) go to your nearest service center... or try this , this may solve the problem... go to menu, settings, initial set up, master clear, code (000000 ),,, then phone will boot just wait,,, then again go to menu, settings, initial set up,,master clear with d same code... wait till it boots up.... let me know if your problems solve..