1、1Step-By-Step InstructionsTo Unlock The Huawei B970 HSDPA ModemI have 3G Huawei B970 modem locked to mobile network “VIVA” .Ill try to explain the way that I could unlock it.I have used the way for unlocking Huawei E220 described by Er.Dave in http:/ ThanksBasic Requirements:1) Your Huawei B970 HSDP
2、A modem2) Essential Softwares: Mobile Partner, dc-unlocker client, Hex Editor, PSAS(Phone System Analisys Software) and Huawei Ccode Tool.I have zipped all these softwares into a single file for easier download. The download: http:/ Hex Editor and Huawei Ccode Tool.exe requires no installation.Dc-un
3、locker client and PSAS(Phone System Analisys Software) installation is required.2Step 1:Remove the SIM card and connect the B970 Modem with USB cable to the PC - If your modem is recognized correctly in “Device manager” of Control Panel you should see the following detected devices- Mass Storage USB
4、 CD rom- 3G modem- Com Port interface (remember number of com port -in example is COM11)- Bus enumerator device 3check com port number of 3G modemIf 4If some device is not recognized you must uninstall the all software for 3d modem and re-install mobile partner , and then reconnect the modem again f
5、or recognizing.Step 2:check the status of device ( this step can skip)Start DC-unlocker and check the status of device5Sometimes the software does not show the correct status and needs in the modem to insert the SIM card of a mobile operator to which the modem is locked.Step 3:Run PSAS and select :
6、Hardware Forensics - Use Mobile Ports6Select the correct COM interface which was detected in Device manager (COM11): 7Select Command “Version Info” in “DIAG” tab and Press Send. Then you will get version number and display Successfully Send Command at Bottom of the window if you correctly set the CO
7、M interface. If this not succes then make sure you are selected correct COM interfaceNow Select Read EFS (and set the End address as 00001000) and then press Lets Go. Now you will be asked to save the file. Give the name as Flash.bin and save it anywhere. You will get Successfully read EFS if everyt
8、hing went ok.8Step 4:Run XVI32 Hex Editor and Open the saved file Flash.bin:Find the String 53 64 48 in the dump. Select menu item, Search - Find:9In the same line of the corresponding place of the right side window will show the 8 digit lock code of your modem. It is easy to find, because there is
9、no other 8 consecutive digit in the same line of the string 53 64 48 00. Just keep searching until you find an 8 digit code grouped together (16637135).Step 5:10Run Huawei Modem Code Tool -Scan for hardware dongleYour Huawei B770 HSDPA Modem should now be unlocked to any network.enjoy!Do not forget to make hardware reset of the modem.
