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Follow these steps if you are unable to set the permissions for the app as described above. This fixes the phones certificate authority (CA) which can be corrupted when local phone shops do "something sketchy" with if a local phone shop re-flashes the firmware on your Nokia phone.
- From the phone's homescreen navigate to Menu -> Settings -> Security -> Authority Certificates
- This is a list of all of the authorities on the phone (which designate what certificates are accepted
- Navigate through the list looking for a certificate with the words Thawte and Code Signing in the name
- There may be multiple Thawte certificates
- If you find the certificate press Options -> Select Use. Ensure that Apps. Signing is on the list and that it is checked
- If the certificate is present and Apps. Signing is on the list, but unchecked for some reason, check that box and try again
- If there is no Thawte code signing certificate on the phone, it has likely been flashed with an invalid OS. Contact an official Nokia store to get the phone's OS/Firmware restored to stock.
- This happens occasionally when servicing phones at roadside or unofficial tech support vendors.
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