(SOLUTION) INVALID CERTIFICATE OR Certificate not on phone or SIM - for NOKIA S40 phones

By 06:02 Sun, 25 Nov 2012 Comments


I've suffered from this problem (I have a 2700c) and I have come across many similar situations.

So here is a guide (Reasons & Solutions) to help

you solve this problem.

Reasons:

1. Deleting the certificate manually from security

settings.

2. Getting your phone flashed at an unauthorised

repair shop. It is not recommended to do so for

it voids the warranty, it deletes all the certificates

from the phone and you may end up with a

dead device.

...Solutions:....

1. Update your software using Firmware Over

The Air (FOTA). If there is any update available,

certificates will be sent on your phone -

download & then install them.

2. Try reinstalling the firmware using Nokia

Suite/Nokia PC Suite. It will install the genuine

software for the phone and along with it the

certificates will get installed.

3. If nothing works please contact an authorised

Nokia Care Centre that is near you.

For firmware reinstallation/update (Guide &

Things to remember)

Connect your phone to a computer & select

Nokia Suite mode. If you do not have Nokia Suite

on your pc you can download it from NOKIA.

Now open the Nokia Suite & click on the �green

icon of arrow pointing downwards�.

If any updates are available they will be shown in

�green�. If not you may reinstall the current

version. Reinstall option is shown in �blue�. If no

option to reinstall is shown, please wait for

sometime it will become visible. Then the Nokia

Suite will download the new software version of

the phone. After it you will be prompted to take

a complete back up of the device content. Please

do not skip this step as reinstallation will erase

all the personal data from the phone like

contacts, messages, calendar entries etc.

Please note that if you have set a memory card

password & you have forgotten its code then

take a backup of the card data also as the card

will be locked after update and can only be

unlocked if you enter the correct code or by

ways mentioned in this thread.

Also note that while updating the device ensure

the following things-

1. The device is full charged.

2. The internet connection Is of good speed &

has a backup in case of power loss.

3. The PC should also be connected to back up

power source as if the process is interrupted

the phone may go dead. More on update

failure & its remedies here.

4. Please do not run any resource intensive

programs in the background while updating

as it may freeze the PC which in turn will

lead to a dead device.

5. Ignore all the windows pop-up notifications

about device being disconnected. DO NOT

DISCONNECT THE PHONE UNTIL

UPDATE IS COMPLETED.

6. It will be better if you disable security

keyguard & PIN code request before

proceeding with Update/Reinstallation.

7. Sometimes the device may show Test

Mode. Do not panic & DO NOT remove the

cable. Let the process complete. YOU CAN ALSO WATCH THE TUTORIAL LIVE ON WAPBAZE YOUTUBE.. WATCH IT HERE NOW NOW FOR COOL TUTORIAL


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