HereLink lost Product Key

Hello,
I have Herelink that was witting for long time and I decided to use it once more.
It was not able to connect to air unit, so i did factory default.
Now it is asking me for Product key. I was trying to locate it but no luck.
Also I am not able to find details on seller. No idea where original invoice was lost.
Is there any way I can recover key or my HereLink is just e-waste right now?

Hi, please provide the SN from the back of the device, and also the android number via Settings->System->About Phone->Model->Serial number, thanks.

Hello, thanks for response. Here are details

Air unit model: HX4-06074 SN: HX4060749500912
Ground unit model HX4-06075 SN:HX4060759500465 and serial number from settings : 62949c93

Hi,

Here is the key for your device.

BGQT-7FK5-LGQH-VWXK 62949c93

Hello @Kelly_Tan
I have 4 herelink devices ,
I updated their firmware now they require a product key, I hope that someone could help me on this issue
the SN of the 4 devices are:

Hi Mo, please also send the serial numbers these four units, which start with HX4-06xxxxxxx, and you might find it at the back of the unit, or the box.

Please let us know where you have bought these units from as well, thanks.

Regards,

Kelly

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Hi @Kelly_Tan

I bought them from this website https://www.sahibinden.com
5 years ago they are secondhand

Thx for texting back

Please put the sn and android code correspondingly, ie which SN to which android code. Thank you.

Hi @Kelly_Tan
These are (android codes : SN) correspondingly.
6c73ce09 : HX4060759500747
669ca3e4 : HX4060759500775
6254ce8d : HX4060759500608
6654d1e3 : HX4060759500769
I appreciate your time.

Hi Mo,

Sorry, we couldn’t find the keys for those units.

The purchase source that you provided wasn’t from our registered resellers either.

I knew from the previous owner that two of those devices were bought from this site
https://www.oyuncakhobi.com and the other two were bought from china
since you are the manufacturer there is no other way to get those keys
and my devices would be useless