There are some seller just sell illegal modem. (steal by tricks)
illegal mean the modem they got are free of charge. (by registering the plan with celcom got free modem with 2 years contract)
They use random someone IC to register the plan (Home Wifi)
Then they sell the modem.

The price range between RM180 - RM 400 for celcom locked version. you can find everywhere online include lazada, shopee,corousell, mudah etc.

When it come to time, the victim( Who name / IC used by scammer to register the celcom plan), will need to pay the bill, termination fee and the cost of modem.

1. Using someone IC to get free modem then sell it.
2. Backdoor buying from Celcom staff.

The price Rm180 is bidding price from telco for school internet tender. The huawei modem price sell by Huawei is about 700%
- 900% higher than the actual cost. You can calculate yourself. Just like iPhone, you pay rm2000 for the manufacturer cost of rm200. That is how business run.

So, I'm not surprised when telco bidding for school internet project, the cost of Huawei b618 is about rm180 while the international market prices is about RM600- RM1200 for this modem.

But for Celcom locked b618-22d modem, there is something wrong if you buy from third party otherwise personal seller sell it after the contract end or after the penalty paid. What you can see people sell Celcom set everywhere without fears.

Let me know if you are willing to sell broken b315.

It still can be modified with 2 ways.
1. Hardware method = By replacing processor chip and nand.
2. Software method = Bypassing sec-usbloader to inject modification files.

Hardware method will cost you between RM200 - RM350.
Cost for software method depends on modder offering.