Reasons:

1. There is a problem with the software itself. Users can choose to reinstall it. If it still cannot be used, users can consider the following situations.

2. After the mobile phone settings or security software have been set, the user needs to modify it and open permissions.

3. System platform problem. There may be a problem with the system platform. The user can exit the system first and wait for a while.

4. The downloaded update shows that the signature is inconsistent, indicating that the approved program has been changed. The imtoken wallet must use a consistent signature. Stop using it and contact relevant customer service for processing. imToken is the world's leading blockchain digital asset management BTC, ETH, ATOM, EOS, TRX, CKB, BCH, LTC, KSM, DOT, FIL, XTZ assets. It also supports decentralized currency exchange functions and open DApp browser provides reliable digital asset management services to millions of users.