Develop Bugs

Using Tmobile HTC TP2 on AT&T network

I had question on 3G network bands. I know Tmobile HTC TP2 has 1700 and 2100 UMTS for 3G coverage which is not compatible with AT&T 3G network.
Is there any way to make it compatible with AT&T 3G network? By upgrading ROM? By making some hardware changes -> How and Who would do it?
Thanks for your time. Thanks.

not possible at this time

i think if you could force hardware to work at frequencies it wasnt built to would have people buying alot less branded and locked phones.

No, the device itself is technically able to receive these frequencies, but the real problem lies with the antenna. Olipro once said he forced the frequencies on one of his devices by somehow modifying the SPL or radio (something like that, anyway), but he didn't receive any more frequencies than he did before, because the problem is with the antenna. The antenna cannot receive these frequencies, so your device is stuck with T-Mobile's 3G frequencies.

Guys, its the same reason as with the Tilt/HTC Kaiser operating on T-Mobile (although I think it was a diffrent piece of hardware. I remember a website briefly had a hardware mod that was capable, but ultimately the parts were as much as the phone....screw that

Does this apply to the EDGE network also? I recently upgraded from my AT&T FUZE to The T-Mobile Touch Pro 2 for the larger screen. I was disappointed that I lost access to AT&T HSDPA/HSUPA network but after reading this post I understood.
But the phone says I’m connected to EDGE but my average speed is 36K, equivalent to GPRS. On my previous FUZE with 3G disable & HTC 620, even a few dumb phones, the EDGE speed was always 200K+.
I don’t think is related to my location, I normally get great connection at home and at work and both locations same speed. I don’t think it is the ROM, I’ve tried a few with the same result, I’m currently using the latest Energy ROM Phoenix.

Edge & GPRS
No, Edge and GPRS are both quad band so if your device will connect to one, it will connect to the other when the signal is available. Only 3G is typically dual band. The Tilt2 picks up 3G on 850/1900/2100MHz so it has one crossover frequency with TMO, but I don't know anyone that has tried picking up 3G on TMO with a Tilt2

No, there are no limits on EDGE frequencies, as all the Rhodium variants are quad band GSM and EDGE capable, and they all support the same GSM/EDGE frequencies. It's only the HSPA frequencies that are different across different Rhodium variants, because the frequencies are so fragmented with different carriers and in different countries.

Thanks for the info.

It's amazing we put a man on the moon(over 30 years ago!) and have made so many technological feats but this we can not do...
If the phone was built one way, it's gonna stay that way.
I don't think there has been a single person in the existence of the earth that has taken apart one of these devices and replaces the radio.
Please prove me wrong.

juiceppc said:
It's amazing we put a man on the moon(over 30 years ago!) and have made so many technological feats but this we can not do...
If the phone was built one way, it's gonna stay that way.
I don't think there has been a single person in the existence of the earth that has taken apart one of these devices and replaces the radio.
Please prove me wrong.
Click to expand...
Click to collapse
It is not that it can't be done, it is just not worth your time to do it. You would be better off selling your TP2 version and getting one the works with your bands.

Thanks for all the information
As I understand to accomplish the thing that I intend to do would need total hardware replacement.
However I wonder if there are any techniques and/or ways to enhance download/upload speed with EDGE? The current EDGE speed on AT&T is very slow. I believe T-Mobile EDGE speed (I used Blackberry Pearl 8100 on T-Mobile earlier) was comparable to 3G speed on AT&T (I have Blackberry Bold 9700 from Office on AT&T). Why EDGE on AT&T is very slow?
Am I doing something wrong with communication settings? I'm using "wap.cingular" as my APN (Access Point Name).
Thanks again for all your valuable inputs.

juiceppc said:
It's amazing we put a man on the moon(over 30 years ago!) and have made so many technological feats but this we can not do...
If the phone was built one way, it's gonna stay that way.
I don't think there has been a single person in the existence of the earth that has taken apart one of these devices and replaces the radio.
Please prove me wrong.
Click to expand...
Click to collapse
can you put yourself on the moon? its not that easy. you can remove the radio and corresponding internals. but you have to remove it from a working device thats already capable of those frequencies. and then why not just use that phone? its so pointless.

blueguy19 said:
As I understand to accomplish the thing that I intend to do would need total hardware replacement.
However I wonder if there are any techniques and/or ways to enhance download/upload speed with EDGE? The current EDGE speed on AT&T is very slow. I believe T-Mobile EDGE speed (I used Blackberry Pearl 8100 on T-Mobile earlier) was comparable to 3G speed on AT&T (I have Blackberry Bold 9700 from Office on AT&T). Why EDGE on AT&T is very slow?
Am I doing something wrong with communication settings? I'm using "wap.cingular" as my APN (Access Point Name).
Thanks again for all your valuable inputs.
Click to expand...
Click to collapse
Try a different radio, I'm using 4.49.25.88 and my speed increased from 37K to 102K, still sucks but better. I also read on the here that switching GPRS authentication form PAP to CHAP may help also. The switch didn't work for me. I know I can get up to 200K so I will keep trying tweaks.

4.49.25.88 ? Where do I put this in Connection Settings?

blueguy19 said:
4.49.25.88 ? Where do I put this in Connection Settings?
Click to expand...
Click to collapse
It's not a connection setting, it's a whole new package of code for the radios in your phone (phone, EDGE, 3G, bluetooth, wifi), and is flashed to your phone just like a full new ROM (but you can keep whatever ROM you're currently using, even if it's stock).
Pending a test I'm trying to run here, this may also help with the EDGE vs voice issue you've posted the other thread about...I think a different radio might help you with that as well.

blueguy19 said:
4.49.25.88 ? Where do I put this in Connection Settings?
Click to expand...
Click to collapse
You can find radios in the ROM section.
I apologize, I feel like we're hijacking this thread. But here's a pic of my current speed using mobile speed test. Must better than it was before.

New Radio didnt help
I flashed Hard SPL and then 4.49.25.88 radio on Tmobile HTC Touch Pro 2 (with WM 6.5 official ROM).
I didn't increase the internet (download/upload) speed. With earlier Radio, the speed topped at 76 k bits per second, lowest at 19 k bits per second and averaging between 30 to 45 k bits per second. (I did about 10 to 15 tests using dslreports.com/mspeed)
With 4.49.25.88 radio, it never went above 40 k bits per second. Averaging between 19 to 25 k bits per second. Actually reduced speed compared to earlier radio.
I'm not sure what should I try next???? please help!!!

blueguy19 said:
I flashed Hard SPL and then 4.49.25.88 radio on Tmobile HTC Touch Pro 2 (with WM 6.5 official ROM).
I didn't increase the internet (download/upload) speed. With earlier Radio, the speed topped at 76 k bits per second, lowest at 19 k bits per second and averaging between 30 to 45 k bits per second. (I did about 10 to 15 tests using dslreports.com/mspeed)
With 4.49.25.88 radio, it never went above 40 k bits per second. Averaging between 19 to 25 k bits per second. Actually reduced speed compared to earlier radio.
I'm not sure what should I try next???? please help!!!
Click to expand...
Click to collapse
Try .91, trust me you will find one that is perfect for your carrier and area.

I flashed Energy ROM with .88 radio, it did improve download speed. But still don't receive calls while using data.

LG Nitro HD on T-mobile Network = EDGE Only

Just wondering if anybody can assist me in getting my Nitro HD to use the tmobile HSPA+ frequencies.
The Nitro HD uses a Software Definable Radio and has the correct antenna to utilize these frequencies, the trick would be to "define" the radio to do so. I wouldn't even know where to begin to do that.
I was thinking about flashing the baseband from the Tmobile G2x... Thoughts?
(Some discussion and history about this can be found in the thread: "No 4G on CM9 or CM10")
Thanks!
-NBPatton

G2X is a tegra2 device and nitro is qualcomm. even if the real baseband/radio/modem is the same, is really unlikely to be possible. i believe tegra2 has a MDM6600, at least for Moto Atrix1.

el_venga said:
G2X is a tegra2 device and nitro is qualcomm. even if the real baseband/radio/modem is the same, is really unlikely to be possible. i believe tegra2 has a MDM6600, at least for Moto Atrix1.
Click to expand...
Click to collapse
Good call. I agree. What about the HTC Sensation?
Meh, I'm going to give it a shot and see what happens, if im not back in 15 minutes,... go on without me...
Question: Does anybody know how to mess with a baseband image? How are they compiled?

afaik baseband images have their own bootloaders, so the device must be able to boot that baseband firmware.
something you should really consider is that manufacturers can disable bands from the chipset. meaning, even if the hardware ids are the same, is not entirely possible.
in older htc winmob smartphones, later ones like touch and touchpro series, have practically same chipset(i mean the entire cpu and radio/baseband), and some have stuff disabled. pro series has tv out but not fm but the other has fm radio. this happens also with 3g bands. the ATT version of touchpro2 has 850+1900 3g, mean while the Tmobile does 1700+2100 3g, verizon and sprint versions only have 2100mhz 3g.
safest way to work with what you are planing is through jtag because if anything goes wrong, device will be hard bricked, can be recovered with a previously backup or full radio image+bootloaders.

[Q] Modding the GT-n7105 to get LTE on Tmobile

I was recently gifted a Note 2, which is awesome and I love it, but I feel it's a shame for such a nice phone to be stuck on edge, even with Tmobile's refarming (laaaaaame). Everything I can find on Google says that it's a hardware limitation, not firmware. So I wonder, what if I swapped out the radios?
I'm aware that such a feat would require replacing the entire motherboard. If I buy a T889 motherboard and put it in my phone, what kind of issues would I run into, if any? I would have to flash firmwares and radios and such- would going to the Tmobile Note 2 board and flashing everything stock that I find over there be sufficient? Any IMEI issues that I would run into? Would my phone now be considered a SGH-T889?
No, returning/reselling and buying the T889 isn't an option. It's too much effort for uncertain risks for something I don't care all that much about. I'd be open to a trade, but it would have to be an exact counterpart to my own (unlocked, titanium gray, screen protector from new, great condition). I'm sure trading is much easier, but modding sounds much more fun.
Even if I do the mod, it won't be right away, as motherboards are rather scarce and the prices are higher than I'm willing to pay.
Not sure if it matters, but my note 2 is stock rooted and my efs partition is backed up.

Selofain said:
I was recently gifted a Note 2, which is awesome and I love it, but I feel it's a shame for such a nice phone to be stuck on edge, even with Tmobile's refarming (laaaaaame). Everything I can find on Google says that it's a hardware limitation, not firmware. So I wonder, what if I swapped out the radios?
I'm aware that such a feat would require replacing the entire motherboard. If I buy a T889 motherboard and put it in my phone, what kind of issues would I run into, if any? I would have to flash firmwares and radios and such- would going to the Tmobile Note 2 board and flashing everything stock that I find over there be sufficient? Any IMEI issues that I would run into? Would my phone now be considered a SGH-T889?
No, returning/reselling and buying the T889 isn't an option. It's too much effort for uncertain risks for something I don't care all that much about. I'd be open to a trade, but it would have to be an exact counterpart to my own (unlocked, titanium gray, screen protector from new, great condition). I'm sure trading is much easier, but modding sounds much more fun.
Even if I do the mod, it won't be right away, as motherboards are rather scarce and the prices are higher than I'm willing to pay.
Not sure if it matters, but my note 2 is stock rooted and my efs partition is backed up.
Click to expand...
Click to collapse
1. research/check on the LTE frequency bands t mobile uses then go check for example at gsmarena.com if the N7105 supports those bands by checking it's technical specifications
2. in the mean time you can try this.. go to SETTINGS then MORE SETTINGS then MOBILE WIRELESS change your NETWORK MODE to LTE/GSM/WCDMA AUTO
if this doesn't work and t mobile runs in an LTE frequency band supported by your handset it could also mean you need to upgrade/replace your SIM card .....same number but the new chip has LTE features inside it..it's possible
Sent from my GT-N7105 using Tapatalk 4

dead soul said:
1. research/check on the LTE frequency bands t mobile uses then go check for example at gsmarena.com if the N7105 supports those bands by checking it's technical specifications
Click to expand...
Click to collapse
I've done my research on this. Tmobile uses AWS, which the n7105 doesn't support. Tmobile is refarming some of their 1900Mhz to free up frequencies for LTE, which the n7105 does support, but I'm not getting 3G speeds in those areas at all. I've seen around these boards that I'm not the only one to do so.
dead soul said:
2. in the mean time you can try this.. go to SETTINGS then MORE SETTINGS then MOBILE WIRELESS change your NETWORK MODE to LTE/GSM/WCDMA AUTO
if this doesn't work and t mobile runs in an LTE frequency band supported by your handset it could also mean you need to upgrade/replace your SIM card .....same number but the new chip has LTE features inside it..it's possible
Click to expand...
Click to collapse
As I said before, my research indicates that it's a radio hardware issue, not firmware. There are posts on how to get AT&T/Verizon/Sprint/Tmobile versions to work on each other's networks, but not much on getting international versions to fully support LTE in the US. Besides, I get 4G just fine in my old G2.
Which brings me to my original question- what issues would I run into should I do a motherboard swap?

Bump.

Selofain said:
I've done my research on this. Tmobile uses AWS, which the n7105 doesn't support. Tmobile is refarming some of their 1900Mhz to free up frequencies for LTE, which the n7105 does support, but I'm not getting 3G speeds in those areas at all. I've seen around these boards that I'm not the only one to do so.
As I said before, my research indicates that it's a radio hardware issue, not firmware. There are posts on how to get AT&T/Verizon/Sprint/Tmobile versions to work on each other's networks, but not much on getting international versions to fully support LTE in the US. Besides, I get 4G just fine in my old G2.
Which brings me to my original question- what issues would I run into should I do a motherboard swap?
Click to expand...
Click to collapse
I have seen my note II bring opened up and I have seen a video of a N7100 being open up...they are virtually identical to me atleast.... I saw all the complex/circuitry /smart chips were all on one board like RAM, CPU including the radio...Obb the motherboard..most things if not all which connect to the motherboard are dumb circuits like there was a small board which holds the charging port and Mic and that board has a cable to connect to the main mother board...which I'm pretty sure it's dumb.no advanced circuitry...the 3.5 mm Jack port same thing, the antennas are just cables nothing smart on that, the LCD had a one cable I believed just connecting to the mother board...I personally, only my opinion there could even be a good chance somebody could even switch a note II motherboard and force into a note I so if you want to change mother boards between note II variants I think you could be successful...but again..I could be wrong...see some note II tear downs on YouTube between note II variants..and do the judging by yourself
Sent from my Samsung Note II N7105 LTE using Tapatalk 4

Questions before I pulled the trigger.

So I'm getting really close on ordering one of these phone... but I got a few questions before I pulled the trigger.
1- Will this phone work on t-mobile bands in USA? (LTE)
2- Does the 4Gb Ram/128Gb comes just in one color? (gold)
3- How is the sound throughout headphones? (I listen to a lots of music on my current phone/note 4, have a few decents pair or headphones)
Sent from my SM-N910T using Tapatalk

This device does not support LTE in USA.
I would ask you not to look at the model bigger than 32 gig. Because the 32 gig model has all sorts of support for international ROMs. It has International firmware. But the bigger models are behind in development and they do not have that support.
Finally I would also recommend buying off of Swappa.
Sent from my MI MAX using Tapatalk

I was able to flash the helium (64GB) version with no problem with the EU rom.

DKM119 said:
So I'm getting really close on ordering one of these phone... but I got a few questions before I pulled the trigger.
1- Will this phone work on t-mobile bands in USA? (LTE)
2- Does the 4Gb Ram/128Gb comes just in one color? (gold)
3- How is the sound throughout headphones? (I listen to a lots of music on my current phone/note 4, have a few decents pair or headphones)
Sent from my SM-N910T using Tapatalk
Click to expand...
Click to collapse
Sound is awesome, especially if you install something like poweramp...
It supports High Res audio, like Sony devices.
Called snapdragon 24 bit pcm, which is 192khz/24bit.
If you want more it also supports USB Dac.
128gb is only one color, but.. Battery door is not expensive, all u need is to wait for fingerprint sensor replacement with a desired color.
I don't live in US,but what I've heard that it has problems with LTE.
There is a website, I don't remember the name, but it can check is a phone supports lte network for specific operator.

Not working on USA T Mobile LTE is a bummer...
Sent from my SM-N910T using Tapatalk

DKM119 said:
So I'm getting really close on ordering one of these phone... but I got a few questions before I pulled the trigger.
1- Will this phone work on t-mobile bands in USA? (LTE)
2- Does the 4Gb Ram/128Gb comes just in one color? (gold)
3- How is the sound throughout headphones? (I listen to a lots of music on my current phone/note 4, have a few decents pair or headphones)
Sent from my SM-N910T using Tapatalk
Click to expand...
Click to collapse
My take on those questions:
1. The Max doesn't have support for T-Mobile LTE and the band 12/E911 situation makes it essentially impossible to get them on any imported device.
Your best bet for 'device liberty' is either to get a MiFi from T-Mobile or tether the Max to a band 12 device. The issue has been discussed at length over at the Xperia Z Ultra forums and my own take is that it is better to find workarounds rather than accept the seriously restricted device selection available, especially if band 12 is a requirement.
The only devices that can get band 12 is those which are 'certified' by said carrier as being E911 capable and it means VoLTE support - or more exactly 'T-Mobile VoLTE support' meaning that the carrier supplies code to the OEM for compatibility. Since band 12 is a VoLTE band with no GSM fallback for calls, devices without T-Mobile VoLTE aren't allowed to connect. Even if the radio supports band 12 as a pure LTE standard, it won't be able to connect unless the device are 'certified' by this carrier as being E911 complaint.
Ergo: 99.99% of the smartphones are out of the question if T-Mobile band 12 is sought. To me, such a restriction is downright unacceptable and I would get a device anyway and then use Google Voice for voice and text paired with a T-Mobile MiFi or tether to a branded phone in order to combine 'T-Mobile LTE' with 'free choice'.
2. The 4/128GB configuration is only available in gold for the time being.
3. I think the audio quality is very good - I am happy with the way it sounds through the Grado SR225 I am using at this time. Further enhancements can be obtained through V4A. Sony Music (PexoMod) works well with the Max and I think the overall quality is really good.
I can recommend the Max and simply solve the T-Mobile issue with a MiFi or tethered device (your Note 4 could be used as a T-M modem for example).
Yet another solution is to go for the AT&T/Cricket route. The Max isn't going to get LTE but HSPA+ with them with full support (the radio is quadband and works with them).
There is development going on for LTE unlocking but the reports are conflicting whether it works or not. It won't solve the band 12 issue anyway, though.

Thanks for the info... I'll probably stick with a carrier phone, was looking for a big screen phone... i guess gonna keep carrying my phone and 8 inch tablet.
Sent from my SM-N910T using Tapatalk

DKM119 said:
Thanks for the info... I'll probably stick with a carrier phone, was looking for a big screen phone... i guess gonna keep carrying my phone and 8 inch tablet.
Sent from my SM-N910T using Tapatalk
Click to expand...
Click to collapse
I would recommend you to get a MiFi or something from T-Mobile (or use the tether method) unless you are content with the small selection of the carrier. To me, I rather do the MiFi or tether than accept a carrier branded device (freedom of choice is 1000 times more important to me and I don't like to buy devices from a carrier).
It is highly improbable that T-Mobile band 12 will work on a lot of devices due to the whole 'certification' process involved.
My personal take is that I give those carriers the middle finger with their attempts of restriction, switch my talk/text to Google Voice and then use the MiFi/tether method as a way of getting whatever I want, without being restricted to what the carrier want me to use. The whole idea of having a carrier using proprietary VoLTE code and special frequency bands requiring 'certification' doesn't go along well with me and that is why I rather carry an extra device (MiFi/tether phone) with me if need be. I used T-Mobile before but this whole band 12 thing has made me very much opposed to the carrier since it imposes a restriction similar to VZW (almost).
I will probably use Cricket on my Max. If I ever need something like T-Mobile or VZW coverage - I will 100% surely do the MiFi/tethering rather than give up my 'freedom of device'.
Your best bet for T-Mobile (i.e. integrated LTE radio with band 12) could be the 'Huawei Pixel 7' which is heavily rumored at this point as a successor to the Nexus 7. Another option is the Lenovo Phab 2 Pro but it is delayed.

Slightly off topic
Check Zen Phone 3 ULTRA
May suit you better when released in USA.
Was slated for late summer release, but we've hit fall soon, so may be coming soon.
Sent from my MI MAX using Tapatalk

badrsj said:
Slightly off topic
Check Zen Phone 3 ULTRA
May suit you better when released in USA.
Was slated for late summer release, but we've hit fall soon, so may be coming soon.
Sent from my MI MAX using Tapatalk
Click to expand...
Click to collapse
Yeah, I'm waiting for that device to get released here... hopefully soon.
Sent from my SM-N910T using Tapatalk

Possible use on Verizon LTE network at full speed?

Thinking about this as my next possible upgrade, been with a Note 3 for about 3ish 4 years it feels like. After the bootloader got unlocked I had few reasons to upgrade. Now however the hardware is getting dated and this looks like a viable upgrade. Would this phone work on Verizon's LTE network at full speeds, I am assuming there will eventually be a CyanogenMod released for this and then all I would need to do is unlock it?

Don't count on it

It's sadly not that simple from looking into it for the Mi5... However if they make great progress with the Mi5 there could be hope for this device as well since the 820 and 821 have few differences (or none? just an OC?).
The Mi5 is able to make calls and text at the moment but the LTE is still a bit unstable. If this looks like it will get enough support I might choose it over the Pixel XL. And if it works on Verizon since I still have my unlimited data plan.

I'd like to see B2, B4 and B12 LTE bands unlockable. I'm guessing monitoring progress on the mi5 is the right move since they have similar hardware profile.
Hopefully the chip can support the bands, otherwise it's another great phone that wont see it's potential in the us/eu market.