Hi All.
I've had an X10 mini pro on T-Mobile UK for nearly a year, and love it, but I am faced with a problem:
At work, I get absoluteley no signal. However, there are Wifi networks everywhere that are freeley available. It seemed logical to me that I aught to be able to get my phone to use those wifi networks to obtain a signal, so I did some research and found this generally to be reffered to as UMA (Unliceneced Mobile Access?)
For anyone who's coming across this technology for the first time, this is a facility which allows your mobile phone to use wifi connections as a backup for service signal, and switch seemlessley between them for use on calls (through your regular phone number [NOT VOIP!]) and texts.
I've read a lot of conflicting oppinions and statements on this, and wanted to ask here (In a place of expert knowledge and understanding) what the real truth is behind all this.
1: Is UMA a hardware or software based tool?
-I've heared numerous statements on this, including:
a) "Your phone can not do this if you don't have the correct hardware"
b) "The standard hardware (provided you have wifi access) is all you need, only the software needs to allow support"
C) "You need sufficient wifi technology AND the correct software to enable this"
Which is true?
2: "Service Providers are holding back on UMA support as it removes their justification for charging the user for calls"
- I've seen this in a few places, but it doesn't make sense to me. Sureley, despite the fact that the call is connected by a wifi signal, it still needs to find its way through a telephone exchange. Telephone exchanges cost money to maintain and manage, so that can't be right? can it?
- If anything, sureley this would give service providers a competative advantage as they can guarentee better signal coverage. It would seem more logical to me that the issue is less with the hand set, but with the providers managing the incoming and outgoing call data via the wifi network?
3: "UMA is/isn't supportend on android version X.X"?
- Again, I've seen conflicting info on this. What's the score?
Thought this was the right place to discuss all this and find the real truth behind UMA. My final question of course being:
4: Is there a UMA app or method by which I can use wifi as a signal backup? If not, is anyone looking into it and how soon may users see the benefits?
Appreciate any light that can be shead on this to dispurse the smoke and mirrors that seenm to surround it.
Thanks,
Oliver
hmmm
Supprised noone's responded to this... did I miss something?
In the USA, T-mobile has an app that does this. T-mobile USA uses the term wi-fi calling.
Is there such a thing in the UK? I know that the Optimus T (essentially the same as Optimus One) has this ability. I found this list of phones that work with this feature on T-mobile USA.
Phones that can make use of this new feature:
Blackberry 8520
Blackberry Bold 9780
Samsung Vibrant (SGH-T959)
Samsung Vibrant II (Galaxy S 4G)
LG Optimus T
myTouch 3G Slide
myTouch 4G
Motorola Defy
Motorola Cliq 2
Motorola Cliq XT
Sidekick 4G
G2
G2X
Nokia Astound (C7-00)
Nokia Mode (E73)
Samsung t339
Some other older android phones can work as long as the app has been ported for the device. Very YMMV
Click to expand...
Click to collapse
I do not think your phone is available through T-mobile USA, so it is not on the list. Someone figured out how to bring wi-fi calling to non-tmobile Roms for the Optimus T/Optimus One phone. http://forum.xda-developers.com/showthread.php?t=1116268 However, I am fairly certain that this type of app needs the cooperation of your carrier to work.
Action_Man_1 said:
Hi All.
I've had an X10 mini pro on T-Mobile UK for nearly a year, and love it, but I am faced with a problem:
At work, I get absoluteley no signal. However, there are Wifi networks everywhere that are freeley available. It seemed logical to me that I aught to be able to get my phone to use those wifi networks to obtain a signal, so I did some research and found this generally to be reffered to as UMA (Unliceneced Mobile Access?)
For anyone who's coming across this technology for the first time, this is a facility which allows your mobile phone to use wifi connections as a backup for service signal, and switch seemlessley between them for use on calls (through your regular phone number [NOT VOIP!]) and texts.
I've read a lot of conflicting oppinions and statements on this, and wanted to ask here (In a place of expert knowledge and understanding) what the real truth is behind all this.
1: Is UMA a hardware or software based tool?
-I've heared numerous statements on this, including:
a) "Your phone can not do this if you don't have the correct hardware"
b) "The standard hardware (provided you have wifi access) is all you need, only the software needs to allow support"
C) "You need sufficient wifi technology AND the correct software to enable this"
Which is true?
2: "Service Providers are holding back on UMA support as it removes their justification for charging the user for calls"
- I've seen this in a few places, but it doesn't make sense to me. Sureley, despite the fact that the call is connected by a wifi signal, it still needs to find its way through a telephone exchange. Telephone exchanges cost money to maintain and manage, so that can't be right? can it?
- If anything, sureley this would give service providers a competative advantage as they can guarentee better signal coverage. It would seem more logical to me that the issue is less with the hand set, but with the providers managing the incoming and outgoing call data via the wifi network?
3: "UMA is/isn't supportend on android version X.X"?
- Again, I've seen conflicting info on this. What's the score?
Thought this was the right place to discuss all this and find the real truth behind UMA. My final question of course being:
4: Is there a UMA app or method by which I can use wifi as a signal backup? If not, is anyone looking into it and how soon may users see the benefits?
Appreciate any light that can be shead on this to dispurse the smoke and mirrors that seenm to surround it.
Thanks,
Oliver
Click to expand...
Click to collapse
Try this solution, T-Mobile and Orange have done a deal where they can use eachothers signals, go back to netwoork settings and you should find " T-Mobile-Orange 3G"... Connect to that and it may work.
It seems that T-Mobile and Orange both have very bad coverage compared to other competators.
Hi folks,
I'm looking to possibly switch to T-Mobile, but I know that coverage is spotty in my home town. (I don't go home often... Maybe once or twice a month for a weekend)
Because of the spotty coverage, wifi calling is a feature of T-Mobile that is very appealing to me, but I've been hearing rumors that their wifi calling feature doesn't work unless you purchase the phone directly from T-Mobile (which obviously cannot be done).
However, I do remember seeing a screenshot of the Xperia Z5 Compact's wifi calling settings and there was a tab listed for T-Mobile. Now why would a phone include wifi calling options for a specific carrier if that carrier refuses to support that phone?
Now let's say there is no way to trick the Z5 into letting me use wifi calling on T-Mobile... I read an article stating that CM13 will support T-Mobile's wifi calling. If CM13 was developed for the Z5C, would that do the trick?
Praying that someone with some more experience can shed some light on this matter. Is there any hope for me?
T-mobile announced that they'll be giving mini towers to customers for free (that's not wifi calling but an actual LTE tower for your house that uses your internet connection) so you can just call them up and ask when they'll start sending them out.
Does it just generate an LTE signal? That works well if the phone had working T-Mobile voice over LTE; which i'm not sure it would if I purchased an unlocked model. That router would be great for my home, but I'm concerned for other areas of my hometown, where I actually would need service (for example: car accident). If I could connect to a local coffee shop's wifi connection to make calls; that would make my life so much easier. I would hate to only have service in my home because that would make me feel bound to my house.
JGoldz75 said:
Does it just generate an LTE signal? That works well if the phone had working T-Mobile voice over LTE; which i'm not sure it would if I purchased an unlocked model. That router would be great for my home, but I'm concerned for other areas of my hometown, where I actually would need service (for example: car accident). If I could connect to a local coffee shop's wifi connection to make calls; that would make my life so much easier. I would hate to only have service in my home because that would make me feel bound to my house.
Click to expand...
Click to collapse
It's only phone based: https://support.t-mobile.com/docs/DOC-24269
FYI, I did use T-Mobile on an unlocked, unsupported phone last year for few months and I don't recall ever not having phone signal. Data is another story but calls were always available and I do travel a lot across the world. Their international data is pure BS - it just doesn't work.
And finally, the T-Mobile WiFi calling menu you saw is for the old T-Mobile in the UK that has now been merged into EE. You can flash that firmware but it probably won't work with the USA version depending on what moron wrote the integration and how much configuration data they hardcoded in the app or if it works it might be connecting to a UK gateway.
weasal said:
It's only phone based: https://support.t-mobile.com/docs/DOC-24269
FYI, I did use T-Mobile on an unlocked, unsupported phone last year for few months and I don't recall ever not having phone signal. Data is another story but calls were always available and I do travel a lot across the world. Their international data is pure BS - it just doesn't work.
And finally, the T-Mobile WiFi calling menu you saw is for the old T-Mobile in the UK that has now been merged into EE. You can flash that firmware but it probably won't work with the USA version depending on what moron wrote the integration and how much configuration data they hardcoded in the app or if it works it might be connecting to a UK gateway.
Click to expand...
Click to collapse
It's not that I think the phone will not have service because it's unlocked. T-Mobile just doesn't have great coverage in my hometown area at all. I did the Test-Drive a couple months back and remember getting 0-1 bars at all times... never holding on to a signal long enough to make a single phone call or send a text message. Thanks for the insight into the T-Mobile - EE thing. I didn't realize that. It would be lovely if it did work in the USA but I doubt it The T-Mobile Nexus 5 (arguably one of the most modded phones out there) never got t-mo wifi calling so I doubt this will.
Thank you!
Just so you know, I flashed to EE (even though technically I'm on MetroPCS which is a T-Mobile subsidiary), and I couldn't find that screenshot in any of the settings menus, nor could I locate it via "settings, under device, call. UK EE" as someone suggested in that thread. I do have a "Device Connection" menu and a "Call" menu, but they're separate menus not nested in one another. And I can't find any menu or option that says "UK EE".
So, it sounds like no one can find any Wifi calling toggle in any settings menu, correct?
nnotis said:
So, it sounds like no one can find any Wifi calling toggle in any settings menu, correct?
Click to expand...
Click to collapse
A couple people have mentioned seeing it...someplace. One person said he saw it under the pencil looking icon in the drop down shade, but I've never been able to locate it up there no matter what firmware I've flashed too. It appears to be pretty elusive.
Adrift98 said:
A couple people have mentioned seeing it...someplace. One person said he saw it under the pencil looking icon in the drop down shade, but I've never been able to locate it up there no matter what firmware I've flashed too. It appears to be pretty elusive.
Click to expand...
Click to collapse
It's probably checking for some condition to show the menu.
If you extract the EE firmware you would probable be able to do a text search for T-Mobile and find the apps that have that then decompile the one that sounds like the most likely to have the functionality (probably one with the word customization in the name) and check the logic which enables the functionality and even change and re-compile it. You would also be able to see if it connects to a specific gateway for the wifi calling and if so try to change that too..
Theoretically a company won't spend the money to develop different Wifi calling mechanisms for different countries and thus it should work but then again...
weasal said:
It's probably checking for some condition to show the menu.
If you extract the EE firmware you would probable be able to do a text search for T-Mobile and find the apps that have that then decompile the one that sounds like the most likely to have the functionality (probably one with the word customization in the name) and check the logic which enables the functionality and even change and re-compile it. You would also be able to see if it connects to a specific gateway for the wifi calling and if so try to change that too..
Theoretically a company won't spend the money to develop different Wifi calling mechanisms for different countries and thus it should work but then again...
Click to expand...
Click to collapse
I wouldn't know how to begin to do all of that.
Adrift98 said:
I wouldn't know how to begin to do all of that.
Click to expand...
Click to collapse
You can follow this to extract the system partition (system.sln) and get it's contents to your hard drive: http://forum.xda-developers.com/showthread.php?t=1723284
Then you can use your file explorer (on Windows or whatever your OS is) to search for a text string (make sure you tell it to look only inside *.apk to avoid getting too many results). Once you find the apk files that could be what you need you can then use this: http://www.decompileandroid.com/ to decompile the apps so you get source code.
From then on it's a bit trickier, you'll need to make your way trough the configuration and maybe even the code to figure out where they store the connection info or what exactly do they connect to (it looks like the app uses your sim card to authenticate so that shouldn't require any tweaking).
Or you can just wait and hope this is true: https://support.t-mobile.com/thread/81359 or maybe it's already in M : http://www.phone-probe.com/android-m-features-native-wifi-calling/
Oh is that all? Simple.
It might be easier to just locate the apps needed for US T-Mobile wifi calling from another phone and install them on a z5c with EE firmware since the core OS code needed would be provided by the EE firmware and the US specific stuff will come from the apps.
This has a list that might actually be complete: http://forum.xda-developers.com/showthread.php?t=2302313 and you can ignore any jar files that are listed since that should come with the EE firmware.
The fact that there is a z5c firmware that supports Wifi calling is what's important here - you have all the proprietary and OS stuff baked in, you just need the US specific bits/configuration.
Hi all,
I tried searching xda forums but didn't find a place to ask the question. I have Verizon Palm phone 2018 model, but since Palm released this phone as standalone and sells on their website. I wanted to find out if anyone knows where or when can I find a firmware for the device, as I want to debrand it.
Any info about this? Really want to flash my Verizon branded Palm 2018 to an unlocked firmware
There seems to be very little discussion on the Palm Phone PVG100 here on XDA. We should start to see a lot more people on here looking to customize it, since it's a bargain (1/4 retail) as a refurb on eBay. I just picked one up and am curious if anyone has unlocked the bootloader, loaded TWRP, and rooted this thing.
I too am looking for a rom for this. I picked one of these up from verizon, and have been using it on tmobile with no problem, but want to get rid of the Verizon apps and branding.
Also, there seems to be MUCH room for improvement on battery life if the ROM is cleaned up.
It's a really nifty little device, just needs some TLC.
I was able to get to the bootloader via typical ADB commands, but can't locate any kind of ROM dump for these. I'm really surprised there isn't more discussion about these little buggers.
Palm PVG100
Hi everyone
I'm trying to modify my Palm too and it's curious to see that no information nor material is available online anywhere
I've started a new thread:
https://forum.xda-developers.com/android/help/palm-pvg100-pepito-development-t3971141
I was able to do something, but I still need help with what i say in my thread.
Basically I would like to take a full backup image of the device before starting tinkering with it, but I can't figure out how to make QPST software (Qualcomm Product Support Tool) show the content of the eMMC memory...
Anyone's help or collaboration for this project would be appreciated a lot!
Thanks!
We're you actually in the bootloader or recovery? I haven't been able to get into bootloader on mine. Any success unlocking bootloader?
protocol6v said:
I too am looking for a rom for this. I picked one of these up from verizon, and have been using it on tmobile with no problem, but want to get rid of the Verizon apps and branding.
Also, there seems to be MUCH room for improvement on battery life if the ROM is cleaned up.
It's a really nifty little device, just needs some TLC.
I was able to get to the bootloader via typical ADB commands, but can't locate any kind of ROM dump for these. I'm really surprised there isn't more discussion about these little buggers.
Click to expand...
Click to collapse
---------- Post added at 06:04 PM ---------- Previous post was at 06:00 PM ----------
Are you sure you want to use QPST. I have used it before to unlock LTE bands on a watch, but not for anything with the images / backups. I think the progression is unlocked bootloader, twrp compiled and loaded, then root. I also haven't seen the Pepito source code anywhere. Without that I'm not sure you will get far. I think the biggest hurdle right now is unlocking bootloader.
I've tried many root tools, nothing works.
.
StormSeeker1 said:
Hi everyone
I'm trying to modify my Palm too and it's curious to see that no information nor material is available online anywhere
I've started a new thread:
https://forum.xda-developers.com/android/help/palm-pvg100-pepito-development-t3971141
I was able to do something, but I still need help with what i say in my thread.
Basically I would like to take a full backup image of the device before starting tinkering with it, but I can't figure out how to make QPST software (Qualcomm Product Support Tool) show the content of the eMMC memory...
Anyone's help or collaboration for this project would be appreciated a lot!
Thanks!
Click to expand...
Click to collapse
If you do boot into recovery, do not run Emergency Download Mode. You'll have to let the battery slowly die before you can do anything with your device.
Clarifications
Ok, thank you for your comments, guys, I really appreciate it.
Please feel free to correct me at any time, because I might make mistakes.
Just to make things clear:
I don't know exactly what you mean by "getting into the bootloader"; what I can tell you is that I was able to get into recovery and that in Settings->System->Developer Options (I'm sure you know that they are unlocked by tapping many times on the buid number), the Palm PVG100 (Pepito) has a switch that says "OEM Unlocking (Allow the boot loader to be unlocked)"; can you please comment on this?
It's not mandatory to use QPST, any solution is good for me (by the way, ONE OF THE PURPOSES FOR WHICH I WANT TO HACK INTO THE PHONE IS TO UNLOCK ITALIAN BANDS LIKE YOU!), but, as you say, no ROM exists on the web, so we have to find a way to extract the phone ROM and to decompile it (do you agree?).
TWRP doesn't exist for this phone, but, to compile it we need to extract protected files from the phone, right? (Please let me know if you know of a method to compile it without root access, nor ROM files)
In my opinion FIRST STEP IS TO HAVE A BACKUP IN CASE OF A BRICK, BEFORE STARTING TINKERING WITH RECOVERY, BOOTLOADER, PARTITIONS, ROM, FLASHERS AND ROOTING! (No?)
About EDL mode the problem is non-existent, I found out that, while in EDL mode, the Pepito can be restarted 100% of the time keeping the power button pressed for 2 minutes (120 seconds) (you can use a tight rubber band for this or any other trick), please test it
I've just had an idea, which requires strong reverse engineering skills. I have 2 Pepito phones; the first one has the most recent version of the software (1AGN), while the second one has the PREVIOUS ONE (1AGL) (see following link: https://www.verizonwireless.com/support/knowledge-base-221025/ )
This update must be doing something at an elevated privilege level. What if one sniffs what tnis update is doing when I force the update or reverse engineers the package obtained from the mother company as soon as it gets downloaded? Might it have information on how to sign software to make stock recovery ADB sideload fuction accept them? Or maybe provide us with information on how to enable write operation on protected partitions?
Ok. I can answer some of your questions here.
1. You haven't been in the bootloader, I'm not sure if there is one.
2. The OEM unlock bootloader in Dev options doesn't do anything but allow your phone to function (from that image) if you do unlock it. It's a security thing.
3. You unlock bootloader using fastboot commands, but Verizon is known for really locking down the bootloader.
4. I also have 2 phones on the different os versions as you have for a similar reason. I was hoping the root tools (kingroot, kingoroot, etc..) would be able to root one of them. Not the case. Both are solid from the standpoint of using standard root tools. I haven't seen many of them succeed after Android 7.1 anyhow.
5. Are you sure your bands are not already unlocked? Even if you get QPST to unlock the bands, it may not contain any data. So you will need to find another device with those bands unlocked to copy the data from (and that still may not work well). At this point I stopped my unlocking of bands project, as I'd didn't want to make a mistake and cook my brain. There has been very little success with band unlocking unless those bands already contained the data to function. Be careful with QPST.
6. I'm not a developer, so I can't really help with anything you are looking to do, but this is an amazing device and deserves the attention it needs to be rooted for at the very least better power management. Maybe underclocking.
bensdeals said:
Ok. I can answer some of your questions here.
1. You haven't been in the bootloader, I'm not sure if there is one.
2. The OEM unlock bootloader in Dev options doesn't do anything but allow your phone to function (from that image) if you do unlock it. It's a security thing.
3. You unlock bootloader using fastboot commands, but Verizon is known for really locking down the bootloader.
4. I also have 2 phones on the different os versions as you have for a similar reason. I was hoping the root tools (kingroot, kingoroot, etc..) would be able to root one of them. Not the case. Both are solid from the standpoint of using standard root tools. I haven't seen many of them succeed after Android 7.1 anyhow.
5. Are you sure your bands are not already unlocked? Even if you get QPST to unlock the bands, it may not contain any data. So you will need to find another device with those bands unlocked to copy the data from (and that still may not work well). At this point I stopped my unlocking of bands project, as I'd didn't want to make a mistake and cook my brain. There has been very little success with band unlocking unless those bands already contained the data to function. Be careful with QPST.
6. I'm not a developer, so I can't really help with anything you are looking to do, but this is an amazing device and deserves the attention it needs to be rooted for at the very least better power management. Maybe underclocking.
Click to expand...
Click to collapse
Thank you very much for your post, it sheds some lights on the subject.
Well, you say "I'm not sure there is a bootloader", but bootloader is a mandatory piece of the boot chain followed by any device or computer able to boot operating systems, so every device has one; the device might not have a fastboot interface implemented, which is different...but yet annoying...
Standard root tools don't work, I agree, that's why we are looking for developer or board tinkerers help here
I'm 100% sure those bands are not unlocked, because my Italia Samsung Galaxy S5 sees LTE connection, while the Palm doesn't. Also see Palm specs here:
https://www.gsmarena.com/palm_palm-9290.php
It states:
Network
Technology
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 1700(AWS) / 1900 / 2100
4G bands
LTE band 2(1900), 4(1700/2100), 5(850), 12(700), 13(700), 17(700), 66(1700/2100)
Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
You can see Italian LTE bands here:
https://www.frequencycheck.com/countries/italy
It states:
LTE
Name
Interface
B3 (1800 +)
LTE
B7 (2600)
LTE
B20 (800 DD)
LTE
I also contacted Palm support for the bands, requesting to unlock them in the firmware and they told me "Support for those bands is a hardware limitation, rather than something we can control in firmware. Unfortunately, those phones can't be made compatible with some 4G networks."...BUT DO YOU BELIEVE THEM?...
So, yes, I do have another device with those bands unlocked if needed.
With QPST there's no need to be careful until I find a way to make it communicate in read/write with the Palm :laugh::laugh: (just kidding)
Maybe if someone has opened a Palm phone and seen the internal board and knows how to perform electronic tampering, he can tell us what hardware components are involved in LTE communication (I think its embedded in the CPU...Qualcomm MSM8940 Snapdragon 435 (28 nm)...see the following link: http://phonedb.net/index.php?m=processor&id=658&c=qualcomm_snapdragon_435_msm8940&d=detailed_specs ...it states:
Cellular Communication:
Supported Cellular Data LinksList of supported cellular data links CSD 9.6 kbpsCircuit Switched Data (CSD) is the original data link protocol of GSM. Up to 9600bit/s download speed , GPRS (Class unspecified)General Packet Radio Service , EDGE (Class unspecified)Enhanced Data Rates for GSM Evolution also known as Enhanced GPRS (EGPRS) , UMTS 384 kbps (W-CDMA)Universal Mobile Telecommunications System. UMTS Release '99 data link layer, W-CDMA grants up to 384 kbit/s pocket-switched download speed. , HSUPA (Cat. unspecified)High-Speed Uplink Packet Access is a 3.5G UMTS uplink protocol. , DC-HSDPA 42.2 Mbps (Cat. 24)Dual-carrier HSPA+ 42.2 Mbps , cdmaOne (IS-95) , CDMA2000 1xRTT (IS-2000) , CDMA2000 1xEV-DO Rel. 0 , CDMA2000 1xEV-DO Revision A , CDMA2000 1xEV-DO Revision B , TD-SCDMATime Division Synchronous Code Division Multiple Access is the implementation of UMTS (3G) cellular network in China. , LTE (Cat. unspecified)LTE (Long Term Evolution) or the E-UTRAN (Evolved Universal Terrestrial Access Network), introduced in 3GPP R8, is the 4G access part of the Evolved Packet System (EPS). , LTE 300 Mbps / 100 Mbps (Cat. 7)More exact values: LTE 301 Mbps / 100.8 Mbps (Cat. 7) data links
So I don't see why it doesn't support Italian bands, it makes no sense to me.
An electronic board tinkerer would help us a lot, possibly shorting some JTAG pins inside, maybe to disable read/write protection and, maybe, enable Emergency Download Mode with COM port in 9006 mode or some Diagnostic modes (not the 9008 mode, which was the only one I was able to achieve!)
)
In this forum where do you ask if you want to ask someone to help you connecting remotely to your phone to do live operations on it, using remote COM port software or remote control software (like TeamViewer) or if you need someone able to tinker with board circuitry?
I'm cooking my brain too and I would like to perform the operations you need too for battery life improvement and for my personal cullture, to possibly become of some help for this community, if someone teaches me these things..
Internal images and more details are in the FCC docs here
https://fccid.io/2AOETPVG100
StormSeeker1 said:
Thank you very much for your post, it sheds some lights on the subject.
Well, you say "I'm not sure there is a bootloader", but bootloader is a mandatory piece of the boot chain followed by any device or computer able to boot operating systems, so every device has one; the device might not have a fastboot interface implemented, which is different...but yet annoying...
Standard root tools don't work, I agree, that's why we are looking for developer or board tinkerers help here
I'm 100% sure those bands are not unlocked, because my Italia Samsung Galaxy S5 sees LTE connection, while the Palm doesn't. Also see Palm specs here:
https://www.gsmarena.com/palm_palm-9290.php
It states:
Network
Technology
GSM / HSPA / LTE
2G bands
GSM 850 / 900 / 1800 / 1900
3G bands
HSDPA 850 / 1700(AWS) / 1900 / 2100
4G bands
LTE band 2(1900), 4(1700/2100), 5(850), 12(700), 13(700), 17(700), 66(1700/2100)
Speed
HSPA 42.2/5.76 Mbps, LTE Cat4 150/50 Mbps
You can see Italian LTE bands here:
https://www.frequencycheck.com/countries/italy
It states:
LTE
Name
Interface
B3 (1800 +)
LTE
B7 (2600)
LTE
B20 (800 DD)
LTE
I also contacted Palm support for the bands, requesting to unlock them in the firmware and they told me "Support for those bands is a hardware limitation, rather than something we can control in firmware. Unfortunately, those phones can't be made compatible with some 4G networks."...BUT DO YOU BELIEVE THEM?...
So, yes, I do have another device with those bands unlocked if needed.
With QPST there's no need to be careful until I find a way to make it communicate in read/write with the Palm :laugh::laugh: (just kidding)
Maybe if someone has opened a Palm phone and seen the internal board and knows how to perform electronic tampering, he can tell us what hardware components are involved in LTE communication (I think its embedded in the CPU...Qualcomm MSM8940 Snapdragon 435 (28 nm)...see the following link: http://phonedb.net/index.php?m=processor&id=658&c=qualcomm_snapdragon_435_msm8940&d=detailed_specs ...it states:
Cellular Communication:
Supported Cellular Data LinksList of supported cellular data links CSD 9.6 kbpsCircuit Switched Data (CSD) is the original data link protocol of GSM. Up to 9600bit/s download speed , GPRS (Class unspecified)General Packet Radio Service , EDGE (Class unspecified)Enhanced Data Rates for GSM Evolution also known as Enhanced GPRS (EGPRS) , UMTS 384 kbps (W-CDMA)Universal Mobile Telecommunications System. UMTS Release '99 data link layer, W-CDMA grants up to 384 kbit/s pocket-switched download speed. , HSUPA (Cat. unspecified)High-Speed Uplink Packet Access is a 3.5G UMTS uplink protocol. , DC-HSDPA 42.2 Mbps (Cat. 24)Dual-carrier HSPA+ 42.2 Mbps , cdmaOne (IS-95) , CDMA2000 1xRTT (IS-2000) , CDMA2000 1xEV-DO Rel. 0 , CDMA2000 1xEV-DO Revision A , CDMA2000 1xEV-DO Revision B , TD-SCDMATime Division Synchronous Code Division Multiple Access is the implementation of UMTS (3G) cellular network in China. , LTE (Cat. unspecified)LTE (Long Term Evolution) or the E-UTRAN (Evolved Universal Terrestrial Access Network), introduced in 3GPP R8, is the 4G access part of the Evolved Packet System (EPS). , LTE 300 Mbps / 100 Mbps (Cat. 7)More exact values: LTE 301 Mbps / 100.8 Mbps (Cat. 7) data links
So I don't see why it doesn't support Italian bands, it makes no sense to me.
An electronic board tinkerer would help us a lot, possibly shorting some JTAG pins inside, maybe to disable read/write protection and, maybe, enable Emergency Download Mode with COM port in 9006 mode or some Diagnostic modes (not the 9008 mode, which was the only one I was able to achieve!)
)
In this forum where do you ask if you want to ask someone to help you connecting remotely to your phone to do live operations on it, using remote COM port software or remote control software (like TeamViewer) or if you need someone able to tinker with board circuitry?
I'm cooking my brain too and I would like to perform the operations you need too for battery life improvement and for my personal cullture, to possibly become of some help for this community, if someone teaches me these things..
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bensdeals said:
Internal images and more details are in the FCC docs here
https://fccid.io/2AOETPVG100
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Wow, thanks, interesting documentation!
Excuse me, looking at the FCC documentation, is there a way to find out if the phone hardware supports Italian LTE bands or not? Please explain exactly what information to look at for understanding this.
Thanks!
This signed at the bottom of the fcc page:
This device contains GSM/WCDMA/LTE functions that are not operational in U.S. Territories. This filing is only applicable for 700 MHz MBS, 850 MHz Cell, 1700 MHz AWS and 1900 MHz PCS operations
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That is even if it has other bands (and it does have them), they weren't tested by FCC.
nemez said:
This signed at the bottom of the fcc page:
That is even if it has other bands (and it does have them), they weren't tested by FCC.
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So Palm probably told me a lie and the hardware supports other bands
There is one additional thing for which I wanted to gain access to the ROM, to root and to custom ROMs and recoveries. Maybe you can help me with this.
I wrote to Palm company, asking:
Good morning
My Palm PVG100 receives Whatsapp messages only when I tap on the Whatsapp icon to open the application, but it's of utmost importance for my job to receive notifications when the phone is locked and to hear the corresponding sound, like it happens with SMS.
How can I achieve this?
Please tell me all steps in detail
Thank you very much in advance!
Francesco
They gave me a list of useless suggestions:
If you are a WhatsApp user and would like to sync your WhatsApp messages between your Palm and another device, you can use WhatsApp Web on one of your devices. WhatsApp allows an account to be signed into the mobile app on one device and another device on WhatsApp Web simultaneously. To setup WhatsApp Web, visit web.whatsapp.com to get started.
Palm Support Team (Palm)
Sep 22, 23:42 PDT
Hi Francisco,
I'm sorry for my unclear response. Are you using WhatsApp on another mobile device, in addition to your Palm?
Have you tried whitelisting the app in the Life Mode advanced menu? Try this out: https://palmsupport.zendesk.com/hc/en-us/articles/360021806871-I-am-having-issues-with-notifications
Then I sent them various screenshots showing the settings under which the problem still occurs; I attach a zip file with all the screenshots to this message, can you please have a look at it and help me with your experience, since Palm is not responding?
The behavior is like Whatsapp service gets killed from the background or notifications are held, because notifications come in if they come some seconds after I lock the screen, but if I wait, nothing comes in
When lifemode is on and screen is off, my assumption is everything is off. If you read the 'whitelisting' in lifemode only allows notifications to work in those apps when the screen is on.
---------- Post added at 04:08 PM ---------- Previous post was at 04:06 PM ----------
the snapdragon chip will always have all the bands! The only limitation for enabling a disabled band I've seen is 'lack of antennas' no clue exactly what that means, I guess there can be different antenna lengths for different bands. Also as I've seen the lack of data for the bands to operate in qpst
Did you manage to access band data of the Palm in QPST?!
No, I haven't used QPST with the palm. you should try it.
FCC Palm info
we have two hardware Palm version PVG100 and PVG100E/PVG100EU