Huawei has recently released flagship router, the B310. this is often a upgraded CPE router and unlocking is feasible but with totally different method, its sub-models B310As-852, B310s-22, B310s-927 are available, but these routers accompany un-customized firmware and may be unlocked easily. But, what if your device has customized firmware and doesn't invite unlock / SIMLock code.
Normal firmware change procedure doesn't work with B310 Huawei. you've got to dismantle the device, then further it's possible.
After dismantling the device, arrange one USB 2.0 cable; if not then you'll also use cut wire of mouse or keyboard. Dismantle the Huawei B310s-927 and soldier wires as shown in below image. Solder the cables of opposite side of USB 2.0 port to motherboard of the device.
Note : Any wrong connection will make your device dead.
How to change the firmware of Huawei B310 CPE router?
1. Download the appropriate firmware from here2. Download Multicast Upgrade Tool For Huawei LAN Port Routers by clicking here.
3. Reset the router and solder the wires as in above image.
4. Now, connect to PC with USB cable.
5. Switch the device ON.
6. Install Huawei Mobile Partner in PC(they are here) or Install any Huawei Drivers for Huawei Router B310 & B315.
7. Now detect the device under DC unlocker(the link is in here).
8. At the end of the result paste the following:
at^sfm=1
press enter from keyboard.
Note: It will put modem / router in factory mode.
9. Now issue command:
AT^reset
Note: It will reset the device.
10. Now plug the LAN cable to PC. 11. Assign static IP address to the router.
12. Unzip the downloaded file in a folder.
13. Run multicast tool, which you have already downloaded in step 2.
14. Click on refresh to refresh the network card list, and then select the network card whose IP address is 192.168.1.5 (or whatever you have assigned).
15. Click Open.16. Select the upgrade file is displayed. Select the upgrade package B310*.bin, and then click Open.
17. Click Start to start sending multicast packets.
18. After the successful upgrade is complete, all the five signal indicators will be ON on the router.
19. Click Stop to stop sending multicast packets.
20. Close the firmware upgrade multicast tool.
21. Power off the HUB, disconnect soldered cable, and enjoy the B310 CPE Router.
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