MD725 type 1 and type 2 module swap - MTCD Hardware Development

Type 1 and type 2 MD725 module swap for working bluetooth on Oreo.
Summary is that I have confirmed there are two versions of this module.
Using Type ONE (GOC-MD-725) module, I can now upgrade my PX5 to Oreo and have working BlueTooth (29/06/2020 - Users reporting MD725 Type one not working On Android 10 either.)
Get genuine MD725 Type 1 (GOC-MD-725) Here: https://www.aliexpress.com/item/32953209958.html
Updated: 29/06/2020 - Link to obtain an GOC-MD725 'Type 1'.

subcribed!

are all oreo roms affected
so i am new in the Android HU business and started with a MTCE PX5 4GB/32GB HU with Android 8.
Except for my Phone A2DP, Adressbook and Phonecalls, I can not facilitate BT for anything else.
Is this common for all Oreo-Roms?
or is it a Hardware-Limitation.
I would like to use my Phone's LTE Network over BT-Tethering for the HUs Internetaccess, and connect the OBD2 Adapter to the Android System.
Could all this be done with a MD725 BT Module? If so, where can i Find one, Has it some kind of Product-code? as my googling for the Chip does no find a product i can buy.

rootgremlin said:
so i am new in the Android HU business and started with a MTCE PX5 4GB/32GB HU with Android 8.
Except for my Phone A2DP, Adressbook and Phonecalls, I can not facilitate BT for anything else.
Is this common for all Oreo-Roms?
or is it a Hardware-Limitation.
I would like to use my Phone's LTE Network over BT-Tethering for the HUs Internetaccess, and connect the OBD2 Adapter to the Android System.
Could all this be done with a MD725 BT Module? If so, where can i Find one, Has it some kind of Product-code? as my googling for the Chip does no find a product i can buy.
Click to expand...
Click to collapse
Software limitation. Common all MTCB and MTCD.

marchnz said:
Software limitation. Common all MTCB and MTCD.
Click to expand...
Click to collapse
all MTCx Hardware, ok! also all Android versions? so also for Android 5,6 and 7? Because i could care less if it is oreo or not, i want to use this damn things Bluetooth connectivity.
If BT is working on older Software, can i downgrade the ROM to an older Software, if it was delivered with oreo?

PX5 to Oreo working BlueTooth. whether UM02WBS-8723BU-V1.2

roverto said:
PX5 to Oreo working BlueTooth. whether UM02WBS-8723BU-V1.2
Click to expand...
Click to collapse
No, must be GOC.

marchnz said:
No, must be GOC.
Click to expand...
Click to collapse
Have a link from where to buy?

The module in the picture does not work.wireless is working but BT is not working.
https://forum.xda-developers.com/showpost.php?p=76989030&postcount=1427

ishyesh said:
Have a link from where to buy?
Click to expand...
Click to collapse
I brought a complete GS mainboard to obtain the a type 1 (GOC).

I think it's something that manufacturers could have solved long ago... :/

marchnz said:
I brought a complete GS mainboard to obtain the a type 1 (GOC).
Click to expand...
Click to collapse
I'm not trying to be lazy, but would you happen to have a link to the one you bought? I've been fruitlessly scouring the usual sources for an actual type 1 module.

ishyesh said:
I'm not trying to be lazy, but would you happen to have a link to the one you bought? I've been fruitlessly scouring the usual sources for an actual type 1 module.
Click to expand...
Click to collapse
Hi, I brought the board from Xtrons support. I don't have a link, sorry or the model code for the board.

@marchnz Will not there be any other option that fix the bluetooth on Android 8?
I installed android 6 but it is not so fluid

marchnz said:
Place holder for details of type 1 and type 2 MD725 module swap for working bluetooth on Oreo.
Summary is that I have confirmed there are two versions of this module. Thread will be updated with details of the swap.
Using Type 2 module, I can now upgrade my PX5 to Oreo and have working BlueTooth.
Click to expand...
Click to collapse
as far as i know, MD725 type 2 doesn't work with Oreo.

imran0487 said:
as far as i know, MD725 type 2 doesn't work with Oreo.
Click to expand...
Click to collapse
that's right, should read type ONE, thanks, updated.

is there is any update regarding the swap? in your first post you attached 3 pics of the modules, can you tell me which module is type 1 and type 2.

marchnz said:
No, must be GOC.
Click to expand...
Click to collapse
Would this module work?
https://www.aliexpress.com/item/RTL...U-V1-2-13-4-12-2mm-WIFI-GSPI/32471521628.html
---------- Post added at 03:30 PM ---------- Previous post was at 03:26 PM ----------
imran0487 said:
is there is any update regarding the swap? in your first post you attached 3 pics of the modules, can you tell me which module is type 1 and type 2.
Click to expand...
Click to collapse
Type 1 is the white one and Type 2 is the dark one (both in the first image).

I ordered this module and I'm waiting for delivery.I'il write down the test results.
https://es.aliexpress.com/item/RTL8...&terminal_id=501ff62c603a46afa3ee14986a7c7404
This module I received did not work with Bluetooth.
https://es.aliexpress.com/store/pro...?spm=a219c.12010612.8148356.15.38de2340sLP2Ob
---------- Post added at 10:51 PM ---------- Previous post was at 10:49 PM ----------
This is the original module.
https://es.aliexpress.com/store/pro...l?spm=a219c.12010612.8148356.1.1fdd2340Fi83pV

jimimatthews said:
Would this module work?
https://www.aliexpress.com/item/RTL...U-V1-2-13-4-12-2mm-WIFI-GSPI/32471521628.html
---------- Post added at 03:30 PM ---------- Previous post was at 03:26 PM ----------
Type 1 is the white one and Type 2 is the dark one (both in the first image).
Click to expand...
Click to collapse
I think you may be wrong on that. I have one that looks very similar to that dark one and it's a type 1
Code:
127|px5:/ $ getprop bt.md725.type
1

Related

Best radio to use to connect P3113 to my car

Originally I had wanted to mount the P3113 right into my dash (in place of the radio) then I found out that they don't make custom kits to fit the tab. Had a friend estimate the time/price to make it happen and even from him doing the work it looked like it would be about $400 to build the custom parts for it. Not to mention about a days worth of work.
So based on above, I have decided to go another route, I am going to get a mount, and just put the tab over the radio (not in the dash just on the mount arm). So now I am left looking for a really cheap new radio, since no one will ever see the radio face since the tab will be in front of it.
Anyone have any suggestions on a cheap sturdy radio that I could get? Anyone done anything like what I am trying to do before? If possible I would like all the parts to be reusable for when I buy a new car down the road (currently in a 2002 Honda Civic).
Dont know if this article mite help you out
www.instructables.com/id/Android-Tablet-as-Car-PC/
Great Link!
fsubartender said:
Dont know if this article mite help you out
www.instructables.com/id/Android-Tablet-as-Car-PC/
Click to expand...
Click to collapse
However not in my possible world right now, I can't afford that much time/labor from my friend.
Thus I am looking into a radio head to install that will work the best with the tab, whether it be USB aux or a regular headphone Aux.
Any other suggestions? Or ways to do the original idea on the mega cheap lol
off topic maybe?
blister969 said:
off topic maybe?
Click to expand...
Click to collapse
Not sure how either of the past 2 posts were off topic, unless you meant the topic of the thread altogether, then I don't know where else this would go.
This is kind of about accessories, its something that hooks up to your tab for use, in it's most basic form I think that is what an accessory is (I don't know the exact definition, so I apologize if I am incorrect).
His post with the link was on topic in the fact that that was my original plan however to pricey/time consuming.
So now I am looking into radios for the car, since I can always take the radio to my next vehicle when the time comes, I can't always take a custom made dash mount.
Any thoughts into a good cheap radio would be appreciated, I wasn't sure if USB would be an option with a radio, so that is something I could def use advice on, I would be using I Heart Radio for example, and I wasn't sure if that would play through a USB connection, or if it needs to be audio out through the headphones.
I'd go with a BlueTooth receiver. Here's one for $90
http://www.crutchfield.com/p_070XML8150/Dual-XML8150.html
No CD. But will do USB & AUX & BT
I have a 2000 Xterra with the stock CD/cassette/am/fm radio in it. I use the cassette adapter or a radio transmitter to a headphone plug with no problems. The cassette adapter is a lil clearer to me.
Just mount the Tab, plug in to the adapter, and you are ready to rock out!
---------- Post added at 08:30 PM ---------- Previous post was at 08:29 PM ----------
And this is not an off topic for the forum...the automobile is an ACCESSORY to the Galaxy Tab !
fsubartender said:
I have a 2000 Xterra with the stock CD/cassette/am/fm radio in it. I use the cassette adapter or a radio transmitter to a headphone plug with no problems. The cassette adapter is a lil clearer to me.
Just mount the Tab, plug in to the adapter, and you are ready to rock out!
---------- Post added at 08:30 PM ---------- Previous post was at 08:29 PM ----------
And this is not an off topic for the forum...the automobile is an ACCESSORY to the Galaxy Tab !
Click to expand...
Click to collapse
Well, at least the radio is....I'd think a wifi or aux rather than usb would be best, that way you can charge while playing
---------- Post added at 09:01 PM ---------- Previous post was at 08:54 PM ----------
acefsw said:
Well, at least the radio is....I'd think a wifi or aux rather than usb would be best, that way you can charge while playing
Click to expand...
Click to collapse
Doh' Radio isn't off topic

[Q] Stock M8 not USB compliant with 2015 Mazda CX5! workaround?

Hi guys
Weaned myself off Apple with HTC One M8 (love it). I used the extra storage to re-rip my CDs to uncompressed files. They sound great!
Bought a brand new Mazda CX5 Grand Touring with Tech pkg (love it) partially because it was "Android compatible" .
It has 9 speakers with 5.1 surround-but it will only "surround" through the USB port or with a CD.
HTC bluetooth pairs, but won't recognize the car through USB!! I am told by HTC it is not compatible. Is this an issue with all new vehicles or just Mazda?
What is blocking this? Any work arounds without rooting?
I have a rooted Google Nexus 10, but would rather keep my phone stock while under contract if possible.
Thanks.
The issue is that Android has converted to MTP mode instead of USB mass storage; with the latter being what car stereo head units require.
Not sure if there is a mod to convert to USB mass storage, but I'd start there. Probably need root to do so (if such a mod exists).
---------- Post added at 01:03 PM ---------- Previous post was at 01:02 PM ----------
EraVulgaris said:
would rather keep my phone stock while under contract if possible.
Click to expand...
Click to collapse
Why? Warranty is still honored on a rooted phone. Only things that are out of warranty on AT&T are physical or water damage.

TWRP for Moto 360 2nd gen?

I managed to connect it through the Bluetooth debug and come to the stock recovery, however update from ADB (obviously) and SD do not work. I don't mean to modify the system much but just wanted to change the emoji font. Anyone could help to build the TWRP?
Bluetooth debug tutorial:
http://developer.android.com/trainin...debugging.html
Where did you find this picture?
TWRP source code for 1st Gen Moto 360 could be helpful to get an idea?
Sent from my Nexus 6P using XDA-Developers mobile app
The issue, AFAIK, is connecting a USB cable to the 2nd gen 360. The 1st gen had contacts on it underneath the band for a homemade USB cable to connect for bootloader unlocking. I haven't seen any teardowns of the new 360 yet, but it is believed that the contacts might be underneath the back panel.
cambunch said:
The issue, AFAIK, is connecting a USB cable to the 2nd gen 360. The 1st gen had contacts on it underneath the band for a homemade USB cable to connect for bootloader unlocking. I haven't seen any teardowns of the new 360 yet, but it is believed that the contacts might be underneath the back panel.
Click to expand...
Click to collapse
Yeah, i wish someone who has a spare watch is around, for tweaking. Even I couldn't find a teardown.
DJBhardwaj said:
Yeah, i wish someone who has a spare watch is around, for tweaking. Even I couldn't find a teardown.
Click to expand...
Click to collapse
http://forum.xda-developers.com/moto-360-2015/general/help-finding-pin-t3260871
can you find the pins?
icysea said:
http://forum.xda-developers.com/moto-360-2015/general/help-finding-pin-t3260871
can you find the pins?
Click to expand...
Click to collapse
I wish I could tear down my 360, would have definitely done it if I had a spare. My first smartwatch, and I don't want to do something that has unknown conclusions yet. Anyhow, let's see if someone here could do it. Nice share, BTW. :highfive:

Unlock bootloader SM-R750A?

Is there a possible way to unlock bootloader for ATT models SM-R750A? so we can flash roms without problems with Odin?
You find a way to unlock this bootloader and I'll pay you $100..
Yoko_H said:
Is there a possible way to unlock bootloader for ATT models SM-R750A? so we can flash roms without problems with Odin?
Click to expand...
Click to collapse
try this?
http://unlock-bootloader.net/how-to/unlock-bootloader-samsung-gear-s/
neudof said:
try this?
http://unlock-bootloader.net/how-to/unlock-bootloader-samsung-gear-s/
Click to expand...
Click to collapse
That website is fake. You can't unlock the bootloader. You should considering trading your gear s for a tmobile one or just buy one on ebay.
Unlocked bootloader will never happen for a device like this. Trade it in or just buy a tmobile one if u can find one.
Yoko_H said:
Is there a possible way to unlock bootloader for ATT models SM-R750A? so we can flash roms without problems with Odin?
Click to expand...
Click to collapse
To answer that question; "Yes." I'm not sure why One would make a comment, without knowledge of the process. Pay no mind to them. What you need to do is follow the thread I provide, and work your way from there. Good luck.:fingers-crossed:
http://developer.samsung.com/forum/...h-ide/201/286809?boardName=SDK&startId=zzzzz~
---------- Post added at 12:48 AM ---------- Previous post was at 12:36 AM ----------
Also, take the bands off off your GearS2 G3/4 models such as my SM-R730A and One will see a tab that can be removed... This is a magnetic USB port. One can adhere or solder a USB, or use the old Gear 2 charger and tape it tight. This will allow for wired transfer. Also if you do your research, there is a port # associated with the Gear S2 to use whilst connected to a PC by BT. (Bluetooth)
I have added ringtones, notifications, changes to system UI, added my own .wgt (widget) files and the like. All I need to do is figure out how to get Google to work through ifttt, or ported standalone widget.
Abaddon502 said:
To answer that question; "Yes." I'm not sure why One would make a comment, without knowledge of the process. Pay no mind to them. What you need to do is follow the thread I provide, and work your way from there. Good luck.:fingers-crossed:
---------- Post added at 12:48 AM ---------- Previous post was at 12:36 AM ----------
[/COLOR]Also, take the bands off off your GearS2 G3/4 models such as my SM-R730A and One will see a tab that can be removed... This is a magnetic USB port. One can adhere or solder a USB, or use the old Gear 2 charger and tape it tight. This will allow for wired transfer. Also if you do your research, there is a port # associated with the Gear S2 to use whilst connected to a PC by BT. (Bluetooth)
I have added ringtones, notifications, changes to system UI, added my own .wgt (widget) files and the like. All I need to do is figure out how to get Google to work through ifttt, or ported standalone widget.
Click to expand...
Click to collapse
Your link is for a Gear S2, is there a way to unlock the bootloader for the Gear S?

Can a BT module be transplanted?

In my quest for the best combination of features, in light of interchangeable PX5 SOMs, I may want to transfer the BT module that works best to the HU with the best screen. I'm not worried about the soldering and of course the BT selection needs to adjust in the factory settings. Is there a known reason why this would or wouldn't work?
Which by module is "best".
marchnz said:
Which by module is "best".
Click to expand...
Click to collapse
I'm sure that's a controversial question. When I first got an Oreo HU it had a BC6 BT module, and my boss said it sounded very good. Presently I'm running an Oreo SOM in a KSP HU, with an SD-968 module. At least I think it's an SD-968; I lost the MCU configuration, but it functions when set to SD-968 and I recall that's what it was. Maybe I'll know for certain the next time I open the HU. Anyhow this HU got a poorer critique when used on a call. It's all very uncertain since there are so many other factors, the MCU, the amplitude of the MIC input, the HU circuitry, the quality of the phone's connection, and maybe the ROM has an effect also. Perhaps I'll get around to doing a careful study.
Update:
The HU with "good" BT has a short red wire antenna connected to the BT card, which is vertical. This gives me something to try on the HU with "bad" BT. The symptom is, while making a call, the sound fades out a lot, it is not a steady consistent connection. I don't think it's the phone's connection doing this.
xdamember2 said:
I'm sure that's a controversial question. When I first got an Oreo HU it had a BC6 BT module, and my boss said it sounded very good. Presently I'm running an Oreo SOM in a KSP HU, with an SD-968 module. At least I think it's an SD-968; I lost the MCU configuration, but it functions when set to SD-968 and I recall that's what it was. Maybe I'll know for certain the next time I open the HU. Anyhow this HU got a poorer critique when used on a call. It's all very uncertain since there are so many other factors, the MCU, the amplitude of the MIC input, the HU circuitry, the quality of the phone's connection, and maybe the ROM has an effect also. Perhaps I'll get around to doing a careful study.
Update:
The HU with "good" BT has a short red wire antenna connected to the BT card, which is vertical. This gives me something to try on the HU with "bad" BT. The symptom is, while making a call, the sound fades out a lot, it is not a steady consistent connection. I don't think it's the phone's connection doing this.
Click to expand...
Click to collapse
Interesting write up. I would have thought that the md725 be a contender, because it is the integrated BT/wifi chip, which is connected directly to the SOM via USB. Seems the developers have a very poor BT implementation.
Agree multiple factors from mic to module.
Recently I bought comfast CF-WU725B USB card, to see if It can be used instead of integrated BT/WIFI unit.
Mine MCU has md725, so as a BT HF unit it's useless!
Lot of "hishes", echoes, and sound quality like, when you will be almost to far from receiver.
But the problem is that when I plug this card to USB port in some time unit will freeze, and only reboot helps.
I can tell that drivers are get loaded, cause card LED start's to glow.
But when I disable BT from Factory Settings I get no BT, no WIFI and when I connect this card to USB its drivers aren't loaded (no LED light on card).
Is there anyone here that tested this card with success?
silo said:
Recently I bought comfast cf-wr302s USB card, to see if It can be used instead of integrated BT/WIFI unit.
Mine MCU has md725, so as a BT HF unit it's useless!
Lot of "hishes", echoes, and sound quality like, when you will be almost to far from receiver.
But the problem is that when I plug this card to USB port in some time unit will freeze, and only reboot helps.
I can tell that drivers are get loaded, cause card LED start's to glow.
But when I disable BT from Factory Settings I get no BT, no WIFI and when I connect this card to USB its drivers aren't loaded (no LED light on card).
Is there anyone here that tested this card with success?
Click to expand...
Click to collapse
Have a look at this thread
What chipset does the sd-968 have? I know the md-725 is a rtl8723bu
Any source to buying a md725 type1 board? I'm afraid my unit has a type2.
Regards.
Pachis83 said:
Any source to buying a md725 type1 board? I'm afraid my unit has a type2.
Regards.
Click to expand...
Click to collapse
I only found a type 1 by buying a GS xtrons board, desoldering and transplanting into my JY board, replacing the type 2.
suspect it's a matter of factory configuration of type 1 and 2 by the OEM but haven't been able to validate yet.
marchnz said:
I only found a type 1 by buying a GS xtrons board, desoldering and transplanting into my JY board, replacing the type 2.
suspect it's a matter of factory configuration of type 1 and 2 by the OEM but haven't been able to validate yet.
Click to expand...
Click to collapse
It's a problem then... I was expecting to be able to buy a usb dongle from aliexpress with type 1 RTL chip :crying:
@marchnz regarding this post https://forum.xda-developers.com/showpost.php?p=75868058&postcount=219 , could it be a solution to modify the sh file forcing goccsk to be used?
Regards.
P.D. Could it be a type 1 module? https://www.aliexpress.com/item/RTL...150Mbps-100-Original-and-New/32843823199.html
P.D. 2: Found!!! https://es.aliexpress.com/item/RTL8...U-V1-2-13-4-12-2mm-WIFI-GSPI/32471521628.html
Exactly as the one shown in the first post. I will buy one and let you know.
I havent given up yet, but havent found a supplier.
---------- Post added at 04:16 PM ---------- Previous post was at 04:11 PM ----------
Pachis83 said:
It's a problem then... I was expecting to be able to buy a usb dongle from aliexpress with type 1 RTL chip :crying:
@marchnz regarding this post https://forum.xda-developers.com/showpost.php?p=75868058&postcount=219 , could it be a solution to modify the sh file forcing goccsk to be used?
Regards.
P.D. Could it be a type 1 module? https://www.aliexpress.com/item/RTL...150Mbps-100-Original-and-New/32843823199.html
P.D. 2: Found!!! https://es.aliexpress.com/item/RTL8...U-V1-2-13-4-12-2mm-WIFI-GSPI/32471521628.html
Exactly as the one shown in the first post. I will buy one and let you know.
Click to expand...
Click to collapse
I have previously seen these, your pic is a type 2 but a type 1 is needed. Type 1 appear to have "GOC-MD725" stamped on them - let me know how you get on, if it works or not.
See my thread: https://forum.xda-developers.com/an...ment/md725-type-1-type-2-module-swap-t3795575
marchnz said:
I havent given up yet, but havent found a supplier.
---------- Post added at 04:16 PM ---------- Previous post was at 04:11 PM ----------
I have previously seen these, your pic is a type 2 but a type 1 is needed. Type 1 appear to have "GOC-MD725" stamped on them - let me know how you get on, if it works or not.
See my thread: https://forum.xda-developers.com/an...ment/md725-type-1-type-2-module-swap-t3795575
Click to expand...
Click to collapse
Yes, my fault, I though the type 1 was the one with the white back side.
I will try to search for GOC-MD725 and let you know.
Regards.
Pachis83 said:
Yes, my fault, I though the type 1 was the one with the white back side.
I will try to search for GOC-MD725 and let you know.
Regards.
Click to expand...
Click to collapse
The module is made by "goodocomm" - www.goodocom.com
I couldn't find email contact details. Perhaps someone here might try.
marchnz said:
The module is made by "goodocomm" - www.goodocom.com
I couldn't find email contact details. Perhaps someone here might try.
Click to expand...
Click to collapse
Update: I have been in touch with Goodocomm, they have advised "next week" and hope to secure a number of modules which I would then offer to members.
- M
im interested in buying one.
marchnz said:
Update: I have been in touch with Goodocomm, they have advised "next week" and hope to secure a number of modules which I would then offer to members.
- M
Click to expand...
Click to collapse
Great to know that.
Finally my unit has type 1 module, it's running Oreo and working ok.
Even I removed 7floor hardware mod and now using Wadzio modded bios, everything runs ok.
Thanks for your support anyway marchnz.
Regards.
Pachis83 said:
Great to know that.
Finally my unit has type 1 module, it's running Oreo and working ok.
Even I removed 7floor hardware mod and now using Wadzio modded bios, everything runs ok.
Thanks for your support anyway marchnz.
Regards.
Click to expand...
Click to collapse
where did you get module?
silo said:
where did you get module?
Click to expand...
Click to collapse
It was a mistake, my unit always had a type 1 module.
Regards.
Pachis83 said:
It was a mistake, my unit always had a type 1 module.
Regards.
Click to expand...
Click to collapse
So did you find someone that would sell you one of these modules in the end? I'd still like to get hold of one as I had the um02wbs-8723bu-v1.2 which I removed and replaced with a USB MD-725 Type 2 (this was before Oreo was out).
bjt2 said:
So did you find someone that would sell you one of these modules in the end? I'd still like to get hold of one as I had the um02wbs-8723bu-v1.2 which I removed and replaced with a USB MD-725 Type 2 (this was before Oreo was out).
Click to expand...
Click to collapse
No, I didn't find anyone. My unit had Type 1 from factory, I was mistaked thinking it was a type2 one.

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