E173 U2 Airtel Nigeria customized firmware unable to unlock unit wasted

[pbglobal]

Hi i bought 7 credits today using paypal
i wanted to unlock an airtel nigeria modem
i used the automatic search it choosed a
i tried unlocking but i kept getting erro

• DC Unlocker Software

rs and i checked credits
and 4 was gone!
while my modem requires 7

What do i do now?

i got error code 24 and 11

this is the info i got from the software


Check account status

User : pbglobal
Credits left : 7

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DC - Unlocker 2 Client 1.00.1175

Detecting modem :

selection :
manufacturer - Huawei modems
model - Auto detect (recommended)

Found Applications port COM4

Found modem : E173
Model : Huawei E173
IMEI : 860872016841216
Serial NR. : ADABYA9350900546
Firmware : 11.126.29.00.408
Hardware ver. : CD1E153M
Voice feature : disabled
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)

================================================== =================

Unlocking, please wait ...

Resetting unlock counter ...
Port unavailable

Error code 24


unlock failed !


================================================== =================

Check account status

User : pbglobal
Credits left : 3

Unlock Huawei E173 (860872016841216) cost 0 cr

================================================== =================


DC - Unlocker 2 Client 1.00.1175

Detecting modem :

selection :
manufacturer - Huawei modems
model - Huawei E173

Selected Applications port COM4

Found modem : E173
Model : Huawei E173
IMEI : 860872016841216
Serial NR. : ADABYA9350900546
Firmware : 11.126.29.00.408
Hardware ver. : CD1E153M
Voice feature : disabled
SIM Lock status : Locked (Card Lock)
Wrong codes entered : 10 (unlock attempts left : 0)

================================================== =================

Unlocking, please wait ...

Resetting unlock counter ...
Port unavailable

Error code 24


unlock failed !


================================================== =================

Unlocking, please wait ...

Error connecting to server !

Error code 62


unlock failed !


================================================== =================

[Valdemaras]

You get this error because your modem is being used by another service or program, most likely haven't closed connection software or it's service is left running in background.