There is a small reset button on the back. You need a paperclip to push it.

Also keep in mind that Micro SD cards use mmc flash. This is really low
quality flash memory that has poor write endurance.

I had an N310 that would not boot. Replaced the SD card and it booted on
the first try. You could have just killed your micro SD by re-imaging too
many times.

On Wed, Aug 15, 2018 at 12:13 PM, Rob Kossler <rkoss...@nd.edu> wrote:

> Thanks for the suggestion, but no luck.  Just tried the latest off of 3.13
> branch.
>
> Given that I've been using this N310 for weeks on the original UHD
> version, I didn't expect that an update would cure it.
>
> It seems that maybe EEPROM has been corrupted for some reason.  I hope
> there is a reset option because my N310 is basically brick-ed now.
>
> Rob
>
> On Wed, Aug 15, 2018 at 2:55 PM Sayyed Dormiani Tabatabaei <
> sdorm...@eng.ucsd.edu> wrote:
>
>> Well I had this problem with UHD 3.12 but 3.13 fixed it. Do not know why
>> it is back.
>>
>> The github has 13.0.0.2 now and it seems some N310 related things are in
>> that mini patch. Last commit was 20 hours ago so that may be it?
>>
>> ## 003.013.000.002
>> * N3xx: Fix issue where changing the clock/time source could result in
>> clocks becoming unlocked
>> * N3xx: Improve error messages for invalid clock/time settings
>> * N3xx: Add support for Rev G mboard
>> * MPM: Add function parameter to support holding AD9371 in reset
>> * Docs: Add section on building fs/SD images for N3xx
>> * Docs: Fix Doxygen warnings
>>
>> On Wed, Aug 15, 2018 at 11:46 AM, Rob Kossler via USRP-users <
>> usrp-users@lists.ettus.com> wrote:
>>
>>> Anyone know the cause & solution to the following startup error?  This
>>> just started today after a cascade of problems which ultimately required me
>>> to reflash the SD card.
>>>
>>> $ uhd_usrp_probe --args="addr=192.168.61.2"
>>> [INFO] [UHD] linux; GNU C++ version 5.4.0 20160609; Boost_105800;
>>> UHD_3.13.0.1-0-g5b236772
>>> [INFO] [MPMD] Initializing 1 device(s) in parallel with args:
>>> mgmt_addr=192.168.61.2,type=n3xx,product=n310,serial=
>>> 315A34B,claimed=False,addr=192.168.61.2
>>> [INFO] [MPM.PeriphManager] init() called with device args
>>> `mgmt_addr=192.168.61.2,product=n310'.
>>> [ERROR] [RPC] RuntimeError: AD9371 product ID does not match expected
>>> ID! Read: 1 Expected: 3
>>> [ERROR] [MPM.RPCServer] init() failed with error: RuntimeError: AD9371
>>> product ID does not match expected ID! Read: 1 Expected: 3
>>> Error: RuntimeError: Error during RPC call to `init'. Error message:
>>> RuntimeError: AD9371 product ID does not match expected ID! Read: 1
>>> Expected: 3
>>>
>>>
>>> _______________________________________________
>>> USRP-users mailing list
>>> USRP-users@lists.ettus.com
>>> http://lists.ettus.com/mailman/listinfo/usrp-users_lists.ettus.com
>>>
>>>
>>
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