Q: Why do I get the error message Expired certificate or Certificate not valid
yet when I am installing a downloaded application?
A: If Expired certificate or Certificate not valid yet is displayed, even if the
certificate should be valid, check that the current date and time in your device are
correct. You may have skipped the setting of date and time when starting the device
for the first time, or the mobile network may have failed to update these settings
to your device. To resolve this, select Menu > Settings and Phone > Phone
mgmt. > Factory settings. Restore the factory settings, and when the device
restarts, set the correct date and time.
Product and safety information
Accessories
Warning:
Use only batteries, chargers, and accessories approved by Nokia for use with this particular model. The use of any other
types may invalidate any approval or warranty, and may be dangerous. In particular, use of unapproved chargers or
batteries may present a risk of fire, explosion, leakage, or other hazard.
For availability of approved accessories, please check with your dealer. When you disconnect the power cord of any
accessory, grasp and pull the plug, not the cord.
Battery
Battery and charger information
Your device is powered by a rechargeable battery. The battery intended for use with this device is BL-5J. Nokia may make
additional battery models available for this device. This device is intended for use when supplied with power from the
following chargers: AC-8. The exact charger model number may vary depending on the type of plug. The plug variant is
identified by one of the following: E, EB, X, AR, U, A, C, K, or UB.
The battery can be charged and discharged hundreds of times, but it will eventually wear out. When the talk and standby
times are noticeably shorter than normal, replace the battery. Use only Nokia approved batteries, and recharge your
battery only with Nokia approved chargers designated for this device.
Product and safety information 211
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