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I have problems with my E65 after upgrading to the latest firmware (v3.xxx) Every now and then it will prompt me with a message that shows "Sim card error" or "insert sim card". The sim card is always in the phone. It was never a problem before. Also, I have remove the sim card from the E65 and test it on another phone (HTC) and there were no such problem. That concludes the problem is on the E65. Pls kindly help. Thanks.
I also had this problem on my E51, but have now managed to find the cause. It actually has nothing to do with the SIM card, so don't bother replacing it.
If the phone is kept in one place and isn't moved, the message never appears, but then that defeats the purpose of having a mobile phone!
The problem is caused by the connectors on the battery, which should form a tight grip around the the pin connectors of the phone. The battery that came with my phone never caused the problem, but when I inserted a replacement, every now and then when I put the phone in my pocket, the 'Insert Sim Card' notice would appear
I then compared the two batteries and noticed the replacement's connectors were further apart than the original's. Carrying the phone in my pocket obviously caused some movement, which momentarily disconnected it from the battery and caused the phone to error.
Since then, I have only used the original battery. However, I suspect the problem could be fixed by using a small instrument to bring the battery connectors closer together or by inserting a small piece of aluminium foil to ensure a constant connection.
Not sure, but this may also work for N95/E65 users too.
The E51 is a fantastic phone and the best one I have used to date.
hi, I also had this intermittent problem on my E51 and was happy to see a possible solution as mentioned below after having spent more than 2 months with Nokia customer services trying to figure out what was wrong with the handset. To date, I have had the software refreshed three times, my sim card replaced and finally the original handset replaced too but still the problem persists i.e.'insert sim card' error. I will now keep an eye on the battery connection and see whether this works. I would agree however that 'The E51 is a fantastic phone and the best one I have used to date.'