[Modems][09 Jun 13] AT&T SGH-I777 (Samsung & AOSP Based ROMs)

manny05 · Jan 19, 2012

I tried all the modem and I still have bad upload speed on all of them. Granted this only happens in some places, in others I have excellent speed. Is there any way I can fix that or is it really out of my control? I was thinking of trying out the thunderbolt mod I saw inside the captivate Android section. I asked the developer and he assured me the mod would work on my s2. I'm just trying to maximize my 3g/hspa speed. Any suggestions?

Sent from my pimp'd out Samsung Galaxy S2

dirtyballoonot · Jan 19, 2012

Not a single user in Florida...nuts. I get a ton of complaints about noise on Bluetooth, and don't care as much about data speed...

Sent from my SAMSUNG-SGH-I777 using XDA App

Peaster111 · Jan 20, 2012

manny05 said:
I tried all the modem and I still have bad upload speed on all of them. Granted this only happens in some places, in others I have excellent speed. Is there any way I can fix that or is it really out of my control? I was thinking of trying out the thunderbolt mod I saw inside the captivate Android section. I asked the developer and he assured me the mod would work on my s2. I'm just trying to maximize my 3g/hspa speed. Any suggestions?

Sent from my pimp'd out Samsung Galaxy S2

I'm not aware of anything.. sounds like an AT&T network thing (too many iphone users talking to Siri

). I'm not familiar with the thunderbolt mod. Before you give it a shot make sure you have a backup.

Peaster111 · Jan 20, 2012

dirtyballoonot said:
Not a single user in Florida...nuts. I get a ton of complaints about noise on Bluetooth, and don't care as much about data speed...

Sent from my SAMSUNG-SGH-I777 using XDA App

Only three things I can think of beyond the modem that can cause your kind of issue. (1) Bad bluetooth headset (2) something in the ROM is dorked up (3) the kernel

manny05 · Jan 21, 2012

Peaster111 said:
I'm not aware of anything.. sounds like an AT&T network thing (too many iphone users talking to Siri ). I'm not familiar with the thunderbolt mod. Before you give it a shot make sure you have a backup.

I did a nandroid backup just incase and the mod actually has improved my 3G speed. But my battery does seem to take a hit though.it hasn't been a full day yet so I'll keep you updated. IM going to use the modem that gave me the best upload speed sooooo I can get a good balance. Right now it's 6mb download and 1mb upload

Sent from my pimp'd out Samsung Galaxy S2

Peaster111 · Jan 21, 2012

manny05 said:
I did a nandroid backup just incase and the mod actually has improved my 3G speed. But my battery does seem to take a hit though.it hasn't been a full day yet so I'll keep you updated. IM going to use the modem that gave me the best upload speed sooooo I can get a good balance. Right now it's 6mb download and 1mb upload

Sent from my pimp'd out Samsung Galaxy S2

Thanks for the feedback. We at least know the thunderbolt mod doesn't totally break things.

Nizda1 · Jan 23, 2012

dirtyballoonot said:
Not a single user in Florida...nuts. I get a ton of complaints about noise on Bluetooth, and don't care as much about data speed...

Sent from my SAMSUNG-SGH-I777 using XDA App

I'm in south Florida, as far as Bluetooth noise I have not experienced any noticeable difference or static from trying out different modems. Only time I ever experienced an echo I ended up narrowing the problem down to the kernel and have never had anything but great clarity with Bluetooth voice. I've been using KH7, it seems to be work the best for my particular area, although if I'm down in Miami I get a better signal with KK6, but it varies so I stay with KH7.

dirtyballoonot · Jan 23, 2012

Peaster111 said:
Only three things I can think of beyond the modem that can cause your kind of issue. (1) Bad bluetooth headset (2) something in the ROM is dorked up (3) the kernel

Not using BT headset; using my car's

Using UNNamed ROM and Kernal

---------- Post added at 01:43 PM ---------- Previous post was at 01:42 PM ----------

Nizda1 said:
I'm in south Florida, as far as Bluetooth noise I have not experienced any noticeable difference or static from trying out different modems. Only time I ever experienced an echo I ended up narrowing the problem down to the kernel and have never had anything but great clarity with Bluetooth voice. I've been using KH7, it seems to be work the best for my particular area, although if I'm down in Miami I get a better signal with KK6, but it varies so I stay with KH7.

Central Florida (Orlando) here. I might try swapping kernals.

Red5 · Jan 25, 2012

dirtyballoonot said:
Not using BT headset; using my car's

Using UNNamed ROM and Kernal

---------- Post added at 01:43 PM ---------- Previous post was at 01:42 PM ----------

Central Florida (Orlando) here. I might try swapping kernals.

If you're using the Kernel that came with UnNamed, Id suggest that you update that to at least the 01/02/2012 kernel. It may or may not help your speeds, but it will help your phone.

tylercarter · Feb 1, 2012

It seems all the at&t modems are capped when it comes to upload. At least they act that way. Anyway to uncap them?

tylercarter · Feb 4, 2012

Anyone? Is there anyway to help our upload speed?

Peaster111 · Feb 5, 2012

tylercarter said:
Anyone? Is there anyway to help our upload speed?

Apparently we are all clueless on this one...

tylercarter · Feb 5, 2012

Peaster111 said:
Apparently we are all clueless on this one...

haha its all good i just wondered if anybody had a chance to mess with the modems and tweak them any

shoman94 · Feb 6, 2012

tylercarter said:
haha its all good i just wondered if anybody had a chance to mess with the modems and tweak them any

2+ mbps is pretty damn good. I've seen just over 3 mbps. If you not getting that and you're on my firmware then its your area.

Nobody has been able to do anything with the modem. Its binary so you need a hex editor to open it but nothing pops out in there. Something tells me its written differently then formatted in .bin. idk.... I've spent ours on the cappy trying to figure that out. The modem dance is the only thing I figured out. Which IMO was huge but no big deal was ever made of it. :-( lol

Sent from my Transformer Prime TF201 using Tapatalk

tylercarter · Feb 6, 2012

shoman94 said:
2+ mbps is pretty damn good. I've seen just over 3 mbps. If you not getting that and you're on my firmware then its your area.

Nobody has been able to do anything with the modem. Its binary so you need a hex editor to open it but nothing pops out in there. Something tells me its written differently then formatted in .bin. idk.... I've spent ours on the cappy trying to figure that out. The modem dance is the only thing I figured out. Which IMO was huge but no big deal was ever made of it. :-( lol

Sent from my Transformer Prime TF201 using Tapatalk

Thanks man. I remember the modem dance. If I remember right u had a thread on that. Ill check it out and refresh my memory but my upload is. .13mbps.

g8tes69 · Feb 17, 2012

tylercarter said:
Thanks man. I remember the modem dance. If I remember right u had a thread on that. Ill check it out and refresh my memory but my upload is. .13mbps.

damn! that is really low, im on a microcell getting the best 3g service possible... im getting 3mb+, you should at least be getting close to 1mb with bad service... what modem are you using? im using kk6, seems like some on modems i get better reception as far as calls go, but bad for data.... some seem to lack on voice calls but awesome 3g! kk6 get great data speeds for me and i dont notice a difference with call quality... also it seems like it depends on the time of day! i swear at&t dubs down their data during the day, like they limit to what you can use ... shady bastards... also at my work i get horrible signal... i wish i could give the modem more power, like add voltage some how or something... what is modem dance btw?

NJGSII · Feb 21, 2012

http://www.xda-developers.com/android/using-a-telus-modem-could-improve-data-speeds-on-att-sgs2/

This is really misleading as the title makes it seems like it's our phone and they have a picture of our phone and not the skyrocket.

I didn't flash it, but I'm just posting as a heads up for people with our phone not to do it.

Peaster111 · Feb 21, 2012

NJGSII said:
http://www.xda-developers.com/android/using-a-telus-modem-could-improve-data-speeds-on-att-sgs2/

This is really misleading as the title makes it seems like it's our phone and they have a picture of our phone and not the skyrocket.

I didn't flash it, but I'm just posting as a heads up for people with our phone not to do it.

Thanks for the heads up... Hopefully folks will read and heed.

chipfix · Feb 21, 2012

I flashed it before I read this. Do not try it! cwm restore got me back.

ryude · Feb 26, 2012

I'm not sure if it matters, but the checksum doesn't match when comparing the KH7 modem provided here and the one inside the stock KH7 firmware.

[Modems][09 Jun 13] AT&T SGH-I777 (Samsung & AOSP Based ROMs)

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