Database Users

[Q] Samsung Galaxy Nexus GT-i9250 Pinout

Hi,
In our current research, we want to measure power consumption of an I9250 doing various network related tasks. To do this, one of our electronic wizards must connect his instrumentation tools to the battery pinouts. He told me he needed to know the resistance of the two extra pins (those two except + and -)
Anyone who knows this, or has done something similar?
Best wishes,
Morty

So as I understand it those are not used to provide power for the battery. These other pins are used to communicate with the battery (and if it has NFC) use the antenna embedded into the battery. Your engineer doesn't need to do anything with these but connect them straight to the phone.
Out of curiosity is your research going to get published anywhere? I am really interested in those types of numbers

Hi thanks!
We did similar test on the Nokia N900. For this phone, we had to add resistance to the third pin (the additional to + and -). The results are not published, it was part of a master thesis for one of our students.
The experimentation with the nexus is also part of a master thesis, as always we hope it will end with a publication! We can then provide some results.

Well I don't understand why they need to do anything, if they pass these straight through and tap the power lines the battery should work fine (appear transparent).
If that doesn't work then you have two options. The first thing is to buy a replacement battery and take it apart. The second would be to go into your lab and use a scope/meter to measure those lines and see what they do.

U11 phone watch

Has anyone obtained this apparently little-known watch?
I'm not sure it's made by UWatch, even though some places claim it is, and the model name follows their pattern.
But it has some interesting characteristics that blend the U8, U8 Pro and U10 together:
- it can act as a phone, with a SIM, but only through an additional (included) magnetic "SIM shell" that makes the watch a little thicker; without it, it's very thin, less than 9mm
- a detachable shell is also used for USB charging
- it has a compass like the U10, but maybe no barometer/altimeter like the U8 has, since a seller told me so, even though some specs listing suggest otherwise
- the screen is a whopping 320x320 resolution 1.56" IPS (the U8 is 128x128 TN and the U10 is 240x240)
- the battery is quite large, 360mAh, with a claimed life of 10 days (!)
- the CPU is a newer MTK2502C, though I'm not sure it runs Mediatek's Linkit like some other newer watches (there is no hint that you can install apps)
- of course, there are the usual stopwatch, step counter, sleep monitor, and so on
It is around €55, but it can only be obtained from China, I found no European reseller.
If anyone has it (or has found detailed reviews):
- does it run Linkit? Can Linkit apps be installed (through, for instance, the MediaTek SmartDevice app)?
- does it have motion gestures (for instance, does it turn on when you rotate your wrist towards you)?
- is the battery life up to promises?
- is the software solid or buggy?
- any other highlights?

I ordered one of these after I tried and was pleasantly surpised with an u8 clone(...).
There very basic if you compare them with say samsung gear s2 which runs Android and is over 330€ up here. I would rather use the word "robust". With sandby time of nearly 10 days! Thats standby offcours.
The u8 and u11 seem to use the same Nucleus os.
And though the u11 is better in every aspect it still lacks a animated and interactive notification system that Android smartwatches have.
Nonetheless one can do more with Nucleus devices then meets the eye. Its just not an open os where you can just install apps on the fly. Android devices seem to need more power especialy xburst which runs a fair amount higher in clock.
But Nucleus is also more capable then the current roms used on these smart watches.
I have yet to recieve the u11, but from what I have read it will suffice my needs for the moment.
Though I have to be honest that I do not like the U8's battery life at all. It's just ridiculously short when bluetooth is on all the time. The u11 does come with bt4.0 and the battery is bigger but it also has a faster cpu, uses gsm(if activated) and has a bigger(IPS)and higher res screen. Time will tell what the inpact is on battery life. Not much info is on the net right now.
Anyway, its a nice watch with an original design(..) an better build then the u8. Using metal alloy opossed to plastic for the case, better strap, tweaked interface with two themes, nicer clock faces etc.. and I realy like the modular design to keep the watch slim.
Hopefully someone will tweak and customize some U11 roms here at xda

Found this review(in spanish)

Does anyone have the u11 rom ? I corrupted something on mine by installing an app. Now it's stuck on the clock. Touchscreen works... it still connects to my paired phone but I can't navigate the menus.

Can't help you. I still have to recieve it but
what do you mean with you installed an app?
Benwayqb said:
Does anyone have the u11 rom ? I corrupted something on mine by installing an app. Now it's stuck on the clock. Touchscreen works... it still connects to my paired phone but I can't navigate the menus.
Click to expand...
Click to collapse

ebsbow said:
Can't help you. I still have to recieve it but
what do you mean with you installed an app?
Click to expand...
Click to collapse
Long story short, many notifications did not work. Facebook, Messenger, Gmail to name a few.
I tried different apps on my Galaxy S6 and ended up with a totally incompatible app that tried to install something on the watch and corrupted something.

Thats interresting. Maybe add what app so we dont make
the same mistake again.
Did you try to reset the watch?
I mean reset not restart. There should be small hole
( the one thats not the mic) which you can use to reset the
device by puching a needle gently in there. Just make sure
its not the mic!
Mediatek Smartdevice should work.. ?

It's actually Mediatek Smart Device that messed up my watch.
I didn't find a reset button. Disconnected the battery and reconnected it with still the same result. I left the battery disconnected and I'll try gain in a few days.

I dont think removing the battery will reset the device. Flash ram isn't power dependant.
Maybe the manual can tell where or if there is an reset button?

There is no reset button. I did reset the ram via the Flashtool and I still can't access the menus. The clock did revert back to the default one.
I will need somebody to make a backup of his u11 firmware and post it !

Got mine today. Sadly I ordered Black and gotten a Gray color item. :-/ (don't buy at banggood, they will send random color when there stocks are low) Not to happy.
Anyways.
First impression is good. Metal case, in my case, Gray silver..
Battery wasn' t charged so I could not test it right away
but after a small charge it booted, silently, into clock mode.
The screen is nice at 320p. Clockface is analog which I switched
to digital for no specific reasson. Theres two faces of each, all just fine.
Two themes for menu. Menu is nicely organized with features that
matter easy to access. Much better then the U8 if I may compare.
Notification system is also much better. with a preview of the
sms or other notification that arrives. Longer notifs are clear and cripst to
read on the 320p screen. Which pops on when an notif arrives or when you lift your arm in the right direction. Very usable indeed though shaking would be better.
Every app is nicely tweaked. And the added compass works fine.
Very nice watch and very slim. Obviously adding the gsm module will add a few milimeters. Still have to test this though.
If I get around a pc I will upload the rom for those who want it or just incase. But lets see for an update first.
Misses:
A notif has an menu when swiping from the right. When a large email arrives and you want to access the menu(open, delete, block) the watch may freez.
You dont really need the menu that badly but when it locks, just press the side button for approx. 12 sec. and reboot. No biggy but unfortinute. edit; A long press on an item in the list also pop's upp the menu which works fine.
The vibrator is somewhat to loud. It makes more noice then the alarm sound(in low volume). Sadly no way of turning it down. Turn it off at the cinema or you'll get popcorned!
No Calc! This is a smartwatch, right?
Screen could be a little less bright in the dark. Although a amoled would have been great its a nice ips screen. But a lower setting would be nice.

So did you find a way to make a copy of the firmware?
Thanks

No I have not. I dont have an pc availible. I did try
it on my W10 tablet but W10 isnt beeing very likable.
Can you share the program you used, with drivers, then
I will give it an other try. Also did you use the cable that
came in the box to flash the watch?
My table did not recognize the device. Could be the OTG,
the cable or just plain old W10

I used the cable provided. But I had to use an older laptop running Windows XP. Wouldn't work on my W10 laptop.

I am currently in a moving phaze, so I dont think I can help you right now.
All my stuff is tight up.
Maybe a virtual machine with xp on a w10 tablet/pc will work...
If somebody else can jump in here? I see what I can do here. No promises though.
Benwayqb said:
I used the cable provided. But I had to use an older laptop running Windows XP. Wouldn't work on my W10 laptop.
Click to expand...
Click to collapse

have you found an issue ?
Benwayqb said:
Does anyone have the u11 rom ? I corrupted something on mine by installing an app. Now it's stuck on the clock. Touchscreen works... it still connects to my paired phone but I can't navigate the menus.
Click to expand...
Click to collapse
It seems i have a same issue, only clock menu. depending on chosen clock I can access to call and message fonctions.
Best regards

KingWear KW18 Firmware update request and possibly other firmwares

Hello everyone!!
I was hoping to have some guidance and/or advices as far as MTK2502C development goes, most acurately the KingWear KW18 Smartwatch.
Let me explain,
Looking for a better and more updated firmware I flashed the official one from this page:
http://www.king-wear.com/download (KW18_UI2_B_V1_20161128) the "B" options seams to be multilingual in most of the official firmware sites I found, and this is supposed to be the manufacturators official website of my watch, however, when I turn on the watch after flashing, I'm having some display issues, seems that the display is not lined up and I have a white/colorful (Like TV noise) at the bottom of the display where the soft action/virtual buttoms should be. And the touch screen seems to be misaligned too, since to select an option I have to select the one is right below to actually trigger the option I desire. The rest seems to work fine, Bluetooth, Pedometer, Heart Rate, etc, all of that is working fince.
Does anyone know what cause this? Is it a hardware issue? Is it something I can configure on the scatter file?
I also tried to flash the No 1 G3 latest firmware, since I saw G3 and KW18 have pretty much the same specs and the G3 have a much nicer overall ROM visuals and UI, but when I turn on the watch after the flashing, the display doesn't turn on or responds, but if a click the On/Off hardware button on the side, the watch actually makes a bip sound, telling me that the watch actually works, the G3 firmware went through and I'm supposedly turning on and off the screen but it's just that the display doesn't light up, no image, no light not even super deemed, anything, just unresponsive black screen.
Any idea of what could be happening? Is the KW18 not compatible with the No 1 G3 firmware? I honestly do not know.
I made a back up before flashing anything and after each flashing error I have to go back to the stock KW18. It's ok, but I'd like to have a nicer User Interface. The official site shows "supposedly" real pictures of the product and the firmware showed ther looks upgrated to the one I have. Still trying to update through the Mediatek Smart Device or the FundoWear App shows that I'm running the "latest firmware". I and recall watching a video on Youtube where a guy was making a Review of a Smartwatch pretty similar to the KW18 and the watchface showed up the weather and the virtual action buttons where blue and not orange. Watch faces also look more useful and cooler.
I finally got tired of googling for a Official/Custom Rom for the KingWear KW18. The only MTK2502C development I've seen so far is for the IWO watch which has a squared display. I don't think it could work on the KW18 round display, but I don't know for sure.
If anyone have a Custom firmware or a more recent update for the KW18, or point me in the right direction to where to get it, would be espectacular and deeply apprecieated it.
Thanks for your attention. I hope someone could help.

http://www.king-wear.com/download
KW18_LK_V1_B_1710161831 is suitable update or it is for differebónt hardware version?

ReNo05eront said:
Hello everyone!!
I was hoping to have some guidance and/or advices as far as MTK2502C development goes, most acurately the KingWear KW18 Smartwatch.
Let me explain,
Looking for a better and more updated firmware I flashed the official one from this page:
http://www.king-wear.com/download (KW18_UI2_B_V1_20161128) the "B" options seams to be multilingual in most of the official firmware sites I found, and this is supposed to be the manufacturators official website of my watch, however, when I turn on the watch after flashing, I'm having some display issues, seems that the display is not lined up and I have a white/colorful (Like TV noise) at the bottom of the display where the soft action/virtual buttoms should be. And the touch screen seems to be misaligned too, since to select an option I have to select the one is right below to actually trigger the option I desire. The rest seems to work fine, Bluetooth, Pedometer, Heart Rate, etc, all of that is working fince.
Does anyone know what cause this? Is it a hardware issue? Is it something I can configure on the scatter file?
I also tried to flash the No 1 G3 latest firmware, since I saw G3 and KW18 have pretty much the same specs and the G3 have a much nicer overall ROM visuals and UI, but when I turn on the watch after the flashing, the display doesn't turn on or responds, but if a click the On/Off hardware button on the side, the watch actually makes a bip sound, telling me that the watch actually works, the G3 firmware went through and I'm supposedly turning on and off the screen but it's just that the display doesn't light up, no image, no light not even super deemed, anything, just unresponsive black screen.
Any idea of what could be happening? Is the KW18 not compatible with the No 1 G3 firmware? I honestly do not know.
I made a back up before flashing anything and after each flashing error I have to go back to the stock KW18. It's ok, but I'd like to have a nicer User Interface. The official site shows "supposedly" real pictures of the product and the firmware showed ther looks upgrated to the one I have. Still trying to update through the Mediatek Smart Device or the FundoWear App shows that I'm running the "latest firmware". I and recall watching a video on Youtube where a guy was making a Review of a Smartwatch pretty similar to the KW18 and the watchface showed up the weather and the virtual action buttons where blue and not orange. Watch faces also look more useful and cooler.
I finally got tired of googling for a Official/Custom Rom for the KingWear KW18. The only MTK2502C development I've seen so far is for the IWO watch which has a squared display. I don't think it could work on the KW18 round display, but I don't know for sure.
If anyone have a Custom firmware or a more recent update for the KW18, or point me in the right direction to where to get it, would be espectacular and deeply apprecieated it.
Thanks for your attention. I hope someone could help.
Click to expand...
Click to collapse
How do you made your smartwatch backup? and what steps did you follow to upgrade the KW18?

kisger13 said:
http://www.king-wear.com/download
KW18_LK_V1_B_1710161831 is suitable update or it is for differebónt hardware version?
Click to expand...
Click to collapse
None of them worked for me. There were misplaced UI issues in the three.

Syoenth said:
How do you made your smartwatch backup? and what steps did you follow to upgrade the KW18?
Click to expand...
Click to collapse
I used the Universal ReadBack Extractor from Golem_
Original post:
https://forum.xda-developers.com/sm.../readback-extractor-mtk6260-firmware-t3289272
I made a backup from the original firmware, (the one that came pre-installed), and install it back when none of the original firmware versions from KingsWear worked for me. All of them gave me screen misplaced UI issues. I googled a bit more and discovered that the K18 I had was some sort of prototype and that's why I had a lot of issues with the official firmwares from KingsWear. :\
It doesn't matter anymore. The is one of the most common problems when buying this type of chinese devices. If you pay more for other devices, you're ensuring everything will work as expected 99.99% of the time.
To fix my problem let's say I didn't keep the KW18 and I bought a First class smart watch with a cute Apple Logo on the back.
If you have the money and believe on the recommendations and user rating, then go for a more expensive, better-designed device.
Works better than a charm.

Firmware KW18
You placed that you had backed up the Clock before updating it, exactly the same happened to me with my KW18, but the problem I have that does not support the Firmware and I could not recover it. You would be so kind as to send me the original firmware to my email [email protected] I would be eternally grateful. From already thank you very much.

Firmware Original KW18
Syoenth said:
How do you made your smartwatch backup? and what steps did you follow to upgrade the KW18?
Click to expand...
Click to collapse
You placed that you had backed up the Clock before updating it, exactly the same happened to me with my KW18, but the problem I have that does not support the Firmware and I could not recover it. You would be so kind as to send me the original firmware to my email [email protected] I would be eternally grateful. From already thank you very much.

pbastidas said:
You placed that you had backed up the Clock before updating it, exactly the same happened to me with my KW18, but the problem I have that does not support the Firmware and I could not recover it. You would be so kind as to send me the original firmware to my email [email protected] I would be eternally grateful. From already thank you very much.
Click to expand...
Click to collapse
Can you upload a Fullflash Backup please?
I can try to edit
Thanks

"No service" on notification bar. (J500FN) [Solved]

Hi,
Yesterday, I used the phone like normal(little bit of listening music and media etc) and drained the battery, so it shut down. Connected the charger fairly later and it started charging. In a few hours switched it on and saw that there was this white stop sign on the notification bar. Figured it might be a matter of a reboot since things like that happen from time to time. When rebooted in the morning the sign was still there.
I tried all the firmwares from Sammobile available for the region and nothing got it away, tried LineageOS and then used SmartSwitch to restore the thing.
I also got to the ServiceMode using dial code:
Code:
*#011#
and it says there that:
Code:
MIPI DEVICE FAIL. DEVICE MID=0x20c, PID=0x008
Googled a bit and it seems that the easiest way to fix this is changing the motherboard.
Some more background if it matters: the device asks for a sim pin and hasn't been dropped. Just happened out of the blue.

Solved
Hi again,
I managed to fix the issue. Seems like this is a common problem but I didn't find anything on why it happens or is, just some sites I personally haven't heard before had some same content how to fix the J500M but the same chip was faulty on the J500FN.
What I did was: re-heat the chip shown on the pictures a bit with a hairdryer that had a really small radius(kinda like put a cone on it because didn't want to heat the whole board up). And that seemed to do it. It probably will break again, since it was and is still faulty and for that reason broke on the first place. Also if you're advanced enough you can try to solder it, but that seems to be for the professionals really.. One little connection in the wrong place and you fry the damn thing!
The safe bet is to replace the motherboard(which I don't currently have money for) but that does the trick for me now. Also if your warranty still lasts you might wanna take it to the Samsung Service shop where they should replace or re-solder the chip safely onto the mainboard for free. Or change it alltogether.
What also sealed the deal for me was that the grille that was on the opposite of the chip what was faulty had this weird burn-mark thingy on it, so thats why the whole thing happened..
The pictures of the faulty component: Thegsmsolution.com
I hope that anyone who struggles in the future with this (or in the past and still hasn't found a way to fix it) can fix it now.

Help to reprogramming of temperature data loggers - TempTale 4 USB

Foreigner here, please be kind =)
Hello everyone, good morning, good afternoon and good night!
Recently I have received some orders for laboratory supplies accompanied by a temperature Datalogger that performs the recording and storage of the temperature history for 11 days.
I've been researching the model and it is for single use and disposable (TempTale 4 USB - Dry Ice version by Sensitech)
I also discovered on some foreign websites that although there is software from the manufacturer to "unlock" the device for later reuse, the acquisition is not compensated due to the low value and the existence of other reusable models of the brand itself (Sensitech).
As this model came by surprise in my hands and no one has other uses for it, I decided to disassemble it and analyze its hardware. It has an Atmel controller that in my opinion could be reprogrammed to reset the programming or even unlock it for other uses.
If possible, I would like to count on the help of experts here on the forum for this. I believe I have come to the right place for this!
I leave some internal and external photos of the device for you guys
drive.google.com/drive/folders/1kON9AvEiRVNXjbIdCbus7JY8tHV3H36N?usp=sharing
It is worth mentioning that it has an interesting system that when connecting to the computer automatically generates a pdf report with all the data and graphs of the temperature record and another .ttx file that I still don't know what it is. Both are also in the drive folder for you to look at.

Hello there, your thread is kinda old by now but I am working on this myself.
Unfortunately I cannot provide you with the software for Sensitech dataloggers due to it being a bit risky, I do not want to get into legal trouble with Sensitech or getting fired for a hobby project. However even with the software you won't be able to reset one without somehow altering the chip contents. It will give you an error message that the dataloggers are meant for one time use only and cannot be reprogrammed.
The way to reset them is to manually erase the content of the ARM chip on the board, I don't know much about microchip programming but I have gotten it to work myself completely by accident. Probably by measuring each pin with an oscilloscope probe I have somehow corrupted/erased the programming on this chip. After that a red light started blinking and the word SET appeared on screen. After that I was able to reprogram them.
The TTX file is a more detailed database of the temperature logs, from which you can extract CSV files and do some sort of fancy graph displays and all that. The PDF is just for general overview.
You have a different model than the ones I get though. I have found that by shorting the Winbond chip and rebooting the device (shorting the battery connector briefly) it goes into some sort of error state. The screen will blink and every time you press Stop the actual temperature will be displayed on the screen. I do not know if your model has this too.

Is anyone still working on this? I have an interest in discussing repurposing a temp tale and would like to discuss