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http://board.samsungparty.com/post27265.html#p27265
Cappella <—ชื่อผู้ตั้งกระทู้
7th December 2010, 06:05 AM
Will this work on an asian Galaxy Tab (GT-P1000) to get 850Mhz WCDMA?

I live in Thailand, and one operator here uses 850Mhz for 3G. I can "activate" 850 WCDMA with *#2263# (by default 900/1900/2100 were selected + 1700/850 unselected), but it seems to have no effect, I still get only EDGE on the 1800Mhz band.

I tried flashing the modem.bin provided by the OP, it didn't change a thing, except that *#2263# don't show WCDMA 1700 anymore (default selected are 900/1900/2100 + 850 unselected), and if I try to select the 850 band I get an error message saying the menu doesn't exist. Maybe flashing the modem.bin alone wasn't enough?

Will the full procedure described in this post have a chance to help me?

Thanks in advance,
David.

UPDATE: IT WORKS!!!

After searching online, I found some infos that the "menu doesn't exist" message was not a big deal (in *#2263# service mode) and that the 850 WCDMA could be selected in "Combi Bands" Menu… and it worked, after that going back to Automatic. Then again to WCDMA BAND selection, 2100/1900/850 are selected by default (used to be 2100/1900/900 before), and I can select 850 only.

I do get signal on WCDMA 850 Band 5 (I checked with *#0011# to make sure), I get HSDPA data connection (H sign)

So what I did:

1a) I got an Asian Galaxy Tab bought in Thailand
1b) I updated to latest firmware using Kies (well I guess this step isn't important)
1c) I rooted my tab (not important I think)
2) Flash the modem.bin provided in OP using Odin
3) *#2263#, select multi bands, select WCDMA850 only, back, select Automatic, back, Select WDCMA Band, then select WCDMA 850.

Since the 3G signal isn't so good here (pretty poor coverage), I'm going to make more tests and see if it switches between Edge (on GSM 1800) and 3G when the signal is available.

So I guess it means the Galaxy Tab hardware (at least in asian version) supports at least 4 WCDMA bands (I suspect it supports the 1700 band too, maybe with another modem firmware?)