1. Repay overdue funds: repay all overdue funds as soon as possible, including principal and interest. Communicate with the bank, make a reasonable repayment plan and fulfill it on time.

2. Establish a good repayment record: ensure that all bills will be repaid on time in the future to avoid overdue again. It is suggested to set up automatic repayment function or reminder service to help improve the punctuality of repayment.

3. Increase the credit line: gradually increase the credit line through consultation with the bank. This requires good payment ability and repayment record to prove that its credit risk is reduced.

4. Establish a stable source of income: Banks prefer customers with stable credit and reliable income. Therefore, it is very important to have a stable job or income source that can support repayment.

To sum up, to restore the reputation of industrial and commercial micro-credit cards, it is necessary to pay off overdue funds, establish a good repayment record, increase the credit line and establish a stable source of income. The implementation of these measures will help to gradually restore credibility, but it needs continuous efforts and good repayment habits.

Extended data:

Overdue credit cards will have a negative impact on personal credit records. Banks and other financial institutions usually check their credit records when deciding whether to provide loans, car loans or housing loans to individuals. Therefore, restoring credibility is very important for future financial activities. Keeping a good credit record and dealing with any overdue payment in time will help to establish a stable financial reputation.

Please note that the above answers are for reference only, and the specific measures can be different according to individual circumstances. It is suggested to consult relevant professionals or further communicate with ICBC to get specific suggestions according to personal circumstances.