iPhone 7 Plus Error 4005, stuck in DFU

This 7 Plus from eBay has Error 4005 when you try to restore it on iTunes. It's stuck in DFU. 3utools throws "Reading random nonce," and iTunes log can't transition from DFU Mode. It's in like-new condition—no scuffs and no bend. It's also never been disassembled before now.

I'm new to microsoldering, so I don't really know where to start. I've tried a different battery and charge port, as well as disconnecting secondary components like the screen. I've tried different computers and different cables. Is it probable it's the NAND? Should I go ahead and try to reball it?

Here's the tail-end of the iTunes log.

Code:

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[04:13:45.0664] WinDFU::ResetDevice: resetting...
[04:14:00.0905] WinDFU::FinalizeDfuUpdate: success
[04:14:00.0905] <DFU Device 0000000002634030>: DFU succeeded
[04:14:00.0905] Finished DFU Restore Phase: Successful
[04:14:00.0936] DFU mode device disconnected
[04:14:00.0936] Device removed when in state Restoring, moving device to transition state
[04:14:00.0936] Changing state from 'Restoring' to 'Transitioning'
[04:14:00.0936] Creating timer to monitor transition
[04:14:00.0936] Creating a timer for 10 minutes
[04:24:00.0961] Restore completed, status:4005
[04:24:00.0961] Failure Description:
[04:24:00.0961] Depth:0 Code:4005 Error:Gave up waiting for device to transition from DFU state to DFU state.

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