B310As-852 21.318.01.51.59 downgrade
2017-05-23 12:31 reading:407
Many B310As-852 devices get the 3G 4G function by brushing the firmware 21.290.01.51.59, which is easy to use, but the background often prompts to upgrade the firmware.
Most people are curious and want to upgrade to see, but also touches on a simple upgrade, automatically confirm completion of the upgrade version 21.318.01.51.59.
In theory this should also release three networks 4G, but the market there are users reflect Mouwang Can't use it. I have not tested them one by one, and I think that some online can't! Is there any way to downgrade?
After measurement, we found downgrade is possible, just step a little trouble, but overall still acceptable range. Interested in studying the downgrade version, you can micro-channel
Most people are curious and want to upgrade to see, but also touches on a simple upgrade, automatically confirm completion of the upgrade version 21.318.01.51.59.
In theory this should also release three networks 4G, but the market there are users reflect Mouwang Can't use it. I have not tested them one by one, and I think that some online can't! Is there any way to downgrade?
After measurement, we found downgrade is possible, just step a little trouble, but overall still acceptable range. Interested in studying the downgrade version, you can micro-channel
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