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Nokia E63 signature authentication Who knows how to do it?
www.opda.cn

Apply for a free certificate. Complete within 24 hours.

It needs the serial number of the mobile phone. Just press *#06# in standby mode.

In 24 hours! ! ! Click to download the certificate.

Just save it in that location on your phone or computer.

In the future, if you want to sign the software, just click on the online signature.