Blur Busters Forums

hi Falkentyne !
for some reason my handmade upgrader didnt work :cry:
so i decided to buy mster isp but since i live in iran i cant do shoping from ebay..cart100 ..etc
only limited sites i can buy from one of them is aliexpress i found this
http://www.aliexpress.com/item/Free-Shipping-1pcs-Mstar ...

so i dont need to use Blur Busters Strobe Utility explained in this link?
http://www.blurbusters.com/benq/strobe-utility/

is there any link to download the fw4 for 2720z?

i just built my upgrade device by using this instructions
http://www.blurbusters.com/benq/diy-firmware-upgrade-for-benq-z-series/
http://uupload.ir/files/1pjs_dsc_0024.jpg
i have 2720z with fw 1 and i wanted to upgrade it to fw2 but when i saw this topic i changed my mind and now i want to upgrade ...

what is the diffrent between (MBR) and (BBR)?
sorry for noob question