some update. I purchased mymobilebooster and paid using installment. So far even though source signal quite weak, I am satisfied with what I get considering the area that I am living.

Source signal (outdoor) - Band 3, -100 dpm
Boosted indoor - getting 4G (band 3), -80 to 90 dpm. DL speed around 14Mbs.

Only problem is signal stability during online gaming causing lag from time to time. Later I am trying to relocate the outdoor antenna see if I can get better coverage.

booster page refer here. they have multiple products depend on what you need. I bought the rm1985 set. Bit pricey but I dont really have much choice. After antenna relocation, I'm getting a stable connection now. I even purchased digi mobile broadband for wifi use and terminate streamyx for good. Really satisfied so far.

Installation is straight forward. Plug in cables and turn on power supply. They will assist you as necessary through whatssap.

The only thing that is difficult for some people or lady is to install the outdoor antenna on pole, indoor antenna and to route the cables on walls (hammer/drill etc). I just DIY it, or you may ask others for help too.

Guy, have a question here, let Say I stay at a residential area and plan to install this booster thing. Will my neighbour around me benefit and take up the traffic of the network from my booster as well? Or can I set it to be non-public that others can’t connect to??