How to downgrade LG VL600 firmware?
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Newbie

I installed VZAccess Manager 7.7.1(2707e) and upgraded firmware from VL600ZV4 to VL600ZV6, but now performance is worse than with the VL600ZV4, when moving. It looks like that handovers between cells are failing. I tried to downgrade back to VL600ZV4, but the upgrade tool doesn't allow it with the error message "The current firmware version of the device is higher than this firmware upgrade". So how to downgrade older firmware to VL600?

Thanks

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