[Produced by Huoshen] Complete List of Nokia Secret Codes
*#06# Check IMEI number, applicable to all phones *#7370# Format phone, Series 60 phones only *#7780# Restore factory settings, applicable to Series 60 and Series 40 phones *#0000# Check current software version, applicable to all phones *#7760# Check production line number, Series 40 phones only *#2820# Check Bluetooth device address, applicable to Series 60 and Series 40 phones *3370# Activate EFR, available for some phone models #3370# Deactivate EFR, available for some phone models *4720# Activate HFR, available for some phone models #4720# Deactivate HFR, available for some phone models *#92702689# Check total call time, limited to 6630 *#92702689# Enter data mode, Series 40 phones only *#92702689# Enter data mode, Series 40 phones only *#7370925538# Lock the phone, Series 60 phones only 1. *#06#: Display IMEI code 2. *#0000#: Display software version (for some models, if it does not work, you can press *#model code#, e.g., *#6110#) First line - Software version; Second line - Software release date; Third line - Phone model 3. *#92702689#: Display serial number and IMEI code with scroll menu First screen shows - Phone manufacturing time: 1197 (MMYY); Second screen shows - Serial number and IMEI.If the above work is not working properly and the phone calls ask you to enter a valid code, You can try: 1). 6232 (ok): displays the month and year of manufacture 2). 7832 (ok): displays the purchase date of the phone in months and years. 3). 7332 (ok): displays the most recent repair time in months and years: 0000 (month month year year) 4. 9268 (ok): displays the series number 5). 37832 (ok): sets the month and year of purchase (warning: only once allowed) 6). 87267 (ok): confirms transfer, related to software updates. 4. Rate encoding *3370# or *efr#: Enable (efr) full-rate encoding. #3370# or #efr#: Turn off full-rate encoding (enable full-speed enhanced encoding mode, which improves voice quality but consumes power). *4720# or *hra0#: Enable (hr) half-rate encoding. #4720# or #hra0#: Turn off half-rate encoding (reduces voice quality but extends battery usage by about 30%, requires network support). After entering these codes, the device will shut down and restart the device. Only then does it take effect. 5. SIM card lock information *#746025625# (=*#sim0clock#): If the SIM card can be locked, after entering this command during detection, the phone will display "SIM clock stop allowed\" or "SIM clock stop notallowed\", depending on your SIM card. SIM card lock information: includes four different types of locks: 1) Country lock — lock the specified country 2) Network lock — lock the specified network 3) Supplier lock — lock the service provider 4) SIM card lock — lock the specified SIM card 6. Check if your phone is locked frequency First, find the keys that must be used when setting up the phone. Pressing * twice in a row will show \"\"; Pressing * three times will show \"p\"; Pressing * four times in a row will show \"w\". Then, you can enter the corresponding key combinations in order. #pw 1234567890 1#: Check whether the country code is locked
