hi.. newbie here..
how do u actually "uninstall" old drivers/dashboard?

recently updated to new umobile mf680 driver and i lost dc-hspa+..
now it's constantly on hspa+ and blinking blue light on modem..

i tried uninstalling driver software from device manager and installed the 3 drivers, but the 3 connect mannager wont detect my modem and the umobile driver reinstalls itself after a few moments...

Flash to the latest firmware then use the signal tweak.

You will see a huge increase in speed.

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Added on October 8, 2012, 1:49 pm
Thanks for the support situ chuah 
Learnt many from you 
Just run the software
Huawei software is very simple
Huge beza
If you worry about warranty better don't play with this 
What is your original firmware, I may able to get a backup copy for you
Hi bro, I suggest you to uninstall the old driver and everything first
Failed to connect because you haven't setup a APN
And I suggest you use RAS

If you are using pure Umobile modem, you won't need this tweak

Uninstall every dashboard you have

Umobile connect manager
Connect Manage

Then go to the settings > Add APN > RAS

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Added on October 8, 2012, 4:05 pm
I not sure with what chipset is icon 505M is using

Yellow light for this, you may try, if QPST detect it, it should be able to use

2.8MB/s = 22Mbps +  still want more ?       

we all here normally before tweak is 700KB/s ~ 1.3MB/s ,..