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View Full Version : No signal on K800i - Resistors



peteypt
14th February 2009, 07:54 PM
Hi.

This is my first post so excuse me if I'm not writing in the correct place or making no sense.

Basically as couple months ago I purchased this K800i. Everything about this phone, in my opinion is fantastic.

However, a couple weeks ago I managed to crush the screen. (only slightly and just enough to destroy the lcd, but cause no damage to the plastic casing (no cracks or splits in the clear plastic casing etc)

Since the display was white, with the typical thunderbolt cracks through it when on, I thought it'd be an easy job to replace the lcd, so purchased a new one and fitted it.

All is fine EXCEPT I no longer have any signal, well, I have full bars, but it constantly says 'emergency calls only' or 'no network coverage' (I should probably mention that my sim works in other phones. just not this one.)

I assumed I had damaged my antenna so swiftly ordered a new one (since ebay is soooo cheap!) but was told there may be a problem with '2 resisters on the main board'

The new antenna didn't solve the problem so I assume the problem lies with these two resistors on the main board.

Does anyone have any idea which two it will be?

I'm a competent solderer, just can't find any diagrams on the net, and don't really wanna send it off to repairer as I like the sense of purpose on diy repair.

Many thanks, Pete

Ben
15th February 2009, 12:17 AM
Crikey Pete, you've done a lot already! If I'd cracked my LCD I'd be thinking it's time for a new phone!

I've no idea unfortunately, but I hope you're able to find out what's wrong and work some more magic with that soldering iron.

peteypt
15th February 2009, 12:58 PM
lol, I've only just got the phone, and I tend to use phones until I class them a write off. (normally buying them cheap off of eBay needing new screens, mic replacement etc.

Hence why I'm gutted 2 piddly little resistors may have beaten me!

Cheers anyway, Pete :D

Hands0n
15th February 2009, 04:48 PM
I wonder if the person who pointed you in the resistors direction could help locate the pesky li'l varmints. Personally I would not attempt to work on the motherboard of a modern day handset. The components are surface mount and unless you have the right tools and expertise you're likely to get nowhere real fast.