# Can't pair with BT device on MangOH yellow

**URL:** <https://mangoh.discourse.group/t/cant-pair-with-bt-device-on-mangoh-yellow/9353>\
**Category:** mangOH Yellow\
**Created:** [June 18, 2021, 7:08am UTC](https://mangoh.discourse.group/t/cant-pair-with-bt-device-on-mangoh-yellow/9353 "2021-06-18T07:08:17Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![bruceke](https://avatars.discourse-cdn.com/v4/letter/b/0ea827/32.png) [@bruceke](https://mangoh.discourse.group/u/bruceke)\
**Post date:** [June 18, 2021, 7:08am UTC](https://mangoh.discourse.group/t/cant-pair-with-bt-device-on-mangoh-yellow/9353/1 "2021-06-18T07:08:17Z")

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We tried to establish a Bluetooth connection on mangoh, but we found that we could not successfully pair with the device we want to connect.

Is there an example of Bluetooth legacy pairing?

 ![image](https://us1.discourse-cdn.com/flex016/uploads/mangoh/original/2X/f/f1a25e71e69810f27441f9444e5443d46e7d3665.png)

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# system inforamation

Device: WP7607  
IMEI: 359779080309129  
IMEISV: E  
FSN: V3001787350510  
Firmware Version: SWI9X07Y\_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14  
Bootloader Version: SWI9X07Y\_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14  
MCU Version: 002.015  
PRI Part Number (PN): 9908663  
PRI Revision: 001.002  
Carrier PRI Name: SIERRA  
Carrier PRI Revision: 001.060\_000  
SKU: 1104192

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**Author:** ![jyijyi](https://sea2.discourse-cdn.com/flex016/user_avatar/mangoh.discourse.group/jyijyi/32/997_2.png) [@jyijyi](https://mangoh.discourse.group/u/jyijyi)\
**Post date:** [June 18, 2021, 7:12am UTC](https://mangoh.discourse.group/t/cant-pair-with-bt-device-on-mangoh-yellow/9353/2 "2021-06-18T07:12:31Z")

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you can see here:

> [@Bluetooth mangoH yellow launch](https://mangoh.discourse.group/t/bluetooth-mangoh-yellow-launch/5665/11):
>
> I have this message when trying to connect to bluetooth after command ‘power on’, can you help me? "no default controller available "

he was using the software here:  
[https://mangoh.io/mangoh-yellow-resources-software](https://mangoh.io/mangoh-yellow-resources-software)

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**Author:** ![bruceke](https://avatars.discourse-cdn.com/v4/letter/b/0ea827/32.png) [@bruceke](https://mangoh.discourse.group/u/bruceke)\
**Post date:** [June 22, 2021, 6:11am UTC](https://mangoh.discourse.group/t/cant-pair-with-bt-device-on-mangoh-yellow/9353/3 "2021-06-22T06:11:21Z")

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Hi jyijyi,  
Thank you very much for your reply.  
I have referred to this article, but I also have the same problem (cannot pair with legacy Bluetooth)  
, how do I establish a Classic Bluetooth connection on ManagOH?

Firmware is R16 (BlueZ version is 5.52)