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Nokia N70 screen repair

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First post, by gaz

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I have an old Nokia N70 that I need to get some messages from.

It was working at first and now the screen has gone white.

I've seen some videos on YouTube showing people removing some things from the circuit board and jumping wires etc and the display is fixed.

But I'm not sure how you are supposed to know what bits are broken etc?

If I just bought a new screen, would that fix it? Or would it need similar modifications like I've seen on YouTube?

Is there any old phone experts on here? Or maybe someone knows of another website that knows all about fixing old phones?

Thanks in advance, any help would be much appreciated.

Reply 2 of 4, by ChrisXF

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Make up an m/f bus cable: read the messages out with that.

Reply 3 of 4, by gaz

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ChrisXF wrote on 2024-02-12, 11:17:

Make up an m/f bus cable: read the messages out with that.

What is one of those?

I did buy a Nokia USB adapter cable and I tried installing Nokia PC suite on both my Windows 10 and Windows 98 systems but it doesn't seem to register the phone as even being connected?

I know it used to work but it was so long ago I can't remember if I'm missing a step in the connection process ?

I did wonder if I perhaps needed to select something on the phone first to enable the USB connection. But of course I can't see the phone screen. 😞

Reply 4 of 4, by rasz_pl

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If screen replacement doesnt help You could buy another fully working N70 (~$10) to have base for measurements. Worst case scenario you could try swapping flash to a working motherboard.
White screen means backlight works but no data. Its possible to be so broken main CPU doesnt start, in that case you you will have to repair mainboard, and that isnt easy. Its not a case o finding some magical "solutions", like this https://mobile-repair-guide.blogspot.com/2011 … en-problem.html is cargo cult, very popular in India/Asian chop shops with high manual skill level but little electronics knowledge.

All in all repairing mobile phone, even almost 20 years old one, requires microsoldering and electronics knowledge. Its not something you use to start learning about those things. If data is really that important you can contact https://www.ipadrehab.com/index.cfm?Page=Data-Recovery Jessa is good people https://www.youtube.com/@JessaJones/videos

https://github.com/raszpl/FIC-486-GAC-2-Cache-Module for AT&T Globalyst
https://github.com/raszpl/386RC-16 memory board
https://github.com/raszpl/440BX Reference Design adapted to Kicad
https://github.com/raszpl/Zenith_ZBIOS MFM-300 Monitor

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