Develop Bugs

[Q] how install spen - sm-t900

Hi
I have a SM-T900 and is already with root
how can I enable to use spen?
which need to install programs?
Tks

pmello999 said:
Hi
I have a SM-T900 and is already with root
how can I enable to use spen?
which need to install programs?
Tks
Click to expand...
Click to collapse
Please do not post questions to the General section. Please use the Q&A section: http://forum.xda-developers.com/galaxy-tab-pro-12-10-8/help

pmello999 said:
Hi
I have a SM-T900 and is already with root
how can I enable to use spen?
which need to install programs?
Tks
Click to expand...
Click to collapse
You can not use Spen. You need a Note tab for using Spen.

are you sure? sm-p900 is possible

Sm-p900 is part of the Note series, sm-t900 is not.
Sent from my SM-P900 using Tapatalk

pmello999 said:
are you sure? sm-p900 is possible
Click to expand...
Click to collapse
It's not the pen that makes a Note a "Note," it's the display itself. From Wiki...
Wacom tablets use a patented electromagnetic resonance technology. Since the tablet provides power to the pen through resonant inductive coupling, no battery or cord is required for the pointing device. As a result, there are no batteries inside the pen (or the accompanying puck), which makes them slimmer.
Under the tablet's surface is a printed circuit board with a grid of multiple send/receive coils and a magnetic reflector attached behind the grid array. In send mode, the tablet generates a close-coupled electromagnetic field (also known as a B-field) at a frequency of 531 kHz. This close-coupled field stimulates oscillation in the pen's coil/capacitor (LC) circuit when brought into range of the B-field. Any excess resonant electromagnetic energy is reflected back to the tablet. In receive mode, the energy of the resonant circuit’s oscillations in the pen is detected by the tablet's grid. This information is analyzed by the computer to determine the pen's position, by interpolation and Fourier analysis of the signal intensity. In addition, the pen communicates information such as pen tip pressure, side-switch status, tip vs. eraser orientation, and the ID number of the tool (to differentiate between different pens, mice, etc.). For example, applying more or less pressure to the tip of the pen changes the value of the pen's timing circuit capacitor. This signal change can be communicated in an analog or digital method. An analog implementation would modulate the phase angle of the resonant frequency, and a digital method is communicated to a modulator which distributes the information digitally to the tablet. The tablet forwards this and other relevant tool information in packets, up to 200 times per second, to the computer.​http://en.wikipedia.org/wiki/Wacom

is there Bluetooth in S pen?

can't find any info of the tab s4 s pen got the bluetooth features
is it really no bluetooth or Samsung saving the feature for the Unpacked event on 8/9 to launch ?

The info I've read online says there is not.

cliemonster said:
The info I've read online says there is not.
Click to expand...
Click to collapse
Which is great, i really don't want to charge my pen if i were to get this. That's what's been so fantastic about the note line all these years. Active pen, awesome Palm rejection, no batteries.

So is it powered? I always thought the sPen in the note was charged up when you put it inside.

Slave1 said:
So is it powered? I always thought the sPen in the note was charged up when you put it inside.
Click to expand...
Click to collapse
No, Samsung S-Pen uses Wacom EMR technology which requires no power source

rickyray9 said:
No, Samsung S-Pen uses Wacom EMR technology which requires no power source
Click to expand...
Click to collapse
Thanks for the info. I think I was giving Samsung credit for some sort of inductive charging.

Actually was hoping it was the new one like in the Note 9, but that's you know giving Samsung too much credit to put something "new" in their tablet line.

Slave1 said:
So is it powered? I always thought the sPen in the note was charged up when you put it inside.
Click to expand...
Click to collapse
Actually the S-Pen is powered by the electromagnetic grid under the display of the SGTS4. There is a very small electromagnetic device in the pen, which picks up power from the grid underneath the glass.

had to correct this years later:
and inductive stylus in not "powered" at all. passivly interact with the magnetic field of the device youre using it on
a bluetooth-stylus with a battery does not requere charging for regular functioning but for the bluetooth functionality like making photos. your regular stylus-activitys are not effected in any way. dont want to chard: dont use the bluetooth function so you dont need it. the stylus itself is passive

USB ODIN 3d Printed Cradle

Showing one option to connect USB connector to watch with the help of a 3d printer. Connection on the PCB pads were made using safety pins secured on the back of the 3d printed cradle.
Some points,
An extra support part is glued at the back of the cradle for the pins
The pins are secured by hex bolts and washer. Once they are secured, a good dab of CA glue on the bolt+washer+pins will permanently keep them fixed.
The safety pins on the watch connection side might bump into each other thus if you notice on the video, one of the pin has a tape on it to prevent physical contact to one another.

:good:
Thank you very much for posting and sharing. :good:
I have no 3D Printer...
But will try to learn about the files...
Maybe it is possible to print on every 3D Printer...
Best Regards

Good scoop if needed! Cheers

Updated the initial post with a V2 version of the ODIN USB cradle for the R820 as well. V2 version has support protrusion that will secure the pins on the pads and a video demo (demo.zip)

JENJEN01 said:
Showing one option to connect USB connector to watch with the help of a 3d printer.
Click to expand...
Click to collapse
Wasn't really sure based on the pics why would you not fix the wires through "channels" but the video helped a lot!
I had the same idea except I am only researching the problem and no 3D printed experience
This is excellent work, many thanks for sharing!

JENJEN01 said:
Showing one option to connect USB connector to watch with the help of a 3d printer. Connection on the PCB pads were made using safety pins secured on the back of the 3d printed cradle.
Click to expand...
Click to collapse
Hello again,
just a quick request if I may.
I tried to get a quote to get the ODIN_CRADLE_R830.stl v2 printed and they get back to me saying:
There are issues with the parts themselves. The wall thickness is too small in some regions. Please see the attached images. To ensure printability, please increase the wall thickness to at least 0.45mm.
Could you please do this for me? Is there any effect on useability?
Please see the attached picture.
Many thanks

yourmate said:
Hello again,
just a quick request if I may.
I tried to get a quote to get the ODIN_CRADLE_R830.stl v2 printed and they get back to me saying:
There are issues with the parts themselves. The wall thickness is too small in some regions. Please see the attached images. To ensure printability, please increase the wall thickness to at least 0.45mm.
Could you please do this for me? Is there any effect on useability?
Please see the attached picture.
Many thanks
Click to expand...
Click to collapse
see attached file. That notch was there so you could see the pins inside

JENJEN01 said:
see attached file. That notch was there so you could see the pins inside
Click to expand...
Click to collapse
5 star service
What did you use for the pins? Seems like decapitated safety pins?
[on the second read: "The safety pins..."]
I just bought the watch so will not be able to test it till the weekend but will report back asap.

yourmate said:
5 star service
What did you use for the pins? Seems like decapitated safety pins?
[on the second read: "The safety pins..."]
I just bought the watch so will not be able to test it till the weekend but will report back asap.
Click to expand...
Click to collapse
yup you got the correct term -- "decapitated" safety pins

Maybe I have time and money for 3D Printer stuff this year...
Meanwhile I am looking at Youtube Videos...
Still lesson 1 not solved...
To open 3D Model file on my PC...
In this Video I saw something about free Tool Cura..
UltiMaker Cura
ultimaker.com
No idea yet, not tested...
Best Regards
Edit 1...
Hmmm ... 180 Euro... maybe...
%product-title% kaufen
Schnelle Lieferung ✓ Große Auswahl an %brandid% Produkten » Jetzt einfach bestellen: %product-title%
www.conrad.de
Edit 2.
On Ebay I saw Anycubic... and here is 1 Video...

Hi everybody!
After a long time, I decided to try to bring my Galaxy Active 2 back to life (after I killed it while trying to change its CSC to the brazilian CSC) and I've been looking for the pin schematic to connect it via USB.
You've been doing an amazing job with devices to hold the wires and connections but even though I looked all around I couldn't find a schematics for the active 2 (SM-R820) to know that color of wire goes to what pin.
Does anybody know how to connect it? To make things easier, here a photo of the connectors with numbers. I'd appreciate a lot if anyone could help. Thanks!

delimateixeira said:
Hi everybody!
After a long time, I decided to try to bring my Galaxy Active 2 back to life (after I killed it while trying to change its CSC to the brazilian CSC) and I've been looking for the pin schematic to connect it via USB.
You've been doing an amazing job with devices to hold the wires and connections but even though I looked all around I couldn't find a schematics for the active 2 (SM-R820) to know that color of wire goes to what pin.
Does anybody know how to connect it? To make things easier, here a photo of the connectors with numbers. I'd appreciate a lot if anyone could help. Thanks!
Click to expand...
Click to collapse
Here's someone who said is was made!
Samsung Galaxy Watch Active2 - Обсуждение - 4PDA
Samsung Galaxy Watch Active2 - Обсуждение, [Умные часы]
4pda-to.translate.goog

JENJEN01 said:
Showing one option to connect USB connector to watch with the help of a 3d printer. Connection on the PCB pads were made using safety pins secured on the back of the 3d printed cradle.
Some points,
An extra support part is glued at the back of the cradle for the pins
The pins are secured by hex bolts and washer. Once they are secured, a good dab of CA glue on the bolt+washer+pins will permanently keep them fixed.
The safety pins on the watch connection side might bump into each other thus if you notice on the video, one of the pin has a tape on it to prevent physical contact to one another.
Click to expand...
Click to collapse
Hello and thank you for your good suggestion
My problem is this. Can you solve the problem with this method?
Hello dear friends. I also have this problem. Can you find a solution? My watch has stopped working
Wireless Download stuck with error "wd_cm_setup_ap: Failed to run soft AP: -1"
View attachment 5799707
Using this video tutorial:
But in the last stage it was not done. After restarting the watch, connect to the phone
please help me

Question Compatible Pen

Hello,
Is there any compatible pen available?
Actually no official pen avialable in Germany so I'm looking for spare.
I tested HP pen 1MR94 but it's not working.

Peterpaulmarie said:
Hello,
Is there any compatible pen available?
Actually no official pen avialable in Germany so I'm looking for spare.
I tested HP pen 1MR94 but it's not working.
Click to expand...
Click to collapse
xiaomi sell their own pen too

Peterpaulmarie said:
안녕하십니까,
호환되는 펜이 있습니까?
사실 독일에는 공식 펜이 없어서 여분을 찾고 있습니다.
HP 펜 1MR94를 테스트했지만 작동하지 않습니다.
Click to expand...
Click to collapse
Lenovo precision pen2

So is it confirmed that the Lenovo Precision Pen 2 is working?

fogman79 said:
그렇다면 Lenovo Precision Pen 2가 작동하는 것으로 확인되었습니까?
Click to expand...
Click to collapse
of course

I bought (and recharged the battery) a Lenovo Precision Pen 2 but I can't connect it in any way. How should i do?
sangin80 said:
Lenovo precision pen2
Click to expand...
Click to collapse
How did you do the pairing?

fogman79 said:
I bought (and recharged the battery) a Lenovo Precision Pen 2 but I can't connect it in any way. How should i do?
How did you do the pairing?
Click to expand...
Click to collapse
I believe it isn't supported. Xiaomi Pad 5 works only with original Xiaomi Smart Pen and it doesn't recognize other bluetooth pens.

yoshigoszi said:
I believe it isn't supported. Xiaomi Pad 5 works only with original Xiaomi Smart Pen and it doesn't recognize other bluetooth pens.
Click to expand...
Click to collapse
Thanks!
@sangin80 wrote and confirmed that the Lenovo Precision Pen 2 works with the Xiaomi Pad 5.
So I think (I hope) he tried it:
sangin80 said:
of course
Click to expand...
Click to collapse
I also tried swapping protocols as indicated in the Lenovo Tab P11 user manual: "If your pen is not responsive, please try switching pen protocols. Hold both buttons consecutively for 25 seconds to switch between pen protocols (WGP & AES).".
Nothing helps.
We must wait for clarification from @sangin80.

fogman79 said:
I bought (and recharged the battery) a Lenovo Precision Pen 2 but I can't connect it in any way. How should i do?
How did you do the pairing?
Click to expand...
Click to collapse
Bluetooth. Pairing
fogman79 said:
Thanks!
@sangin80 wrote and confirmed that the Lenovo Precision Pen 2 works with the Xiaomi Pad 5.
So I think (I hope) he tried it:
I also tried swapping protocols as indicated in the Lenovo Tab P11 user manual: "If your pen is not responsive, please try switching pen protocols. Hold both buttons consecutively for 25 seconds to switch between pen protocols (WGP & AES).".
Nothing helps.
We must wait for clarification from @sangin80.
Click to expand...
Click to collapse
I'm sorry I didn't provide you with accurate information.
You can first recognize MiPad 5 pen and then use it.

sangin80 said:
Bluetooth. Pairing
I'm sorry I didn't provide you with accurate information.
You can first recognize MiPad 5 pen and then use it.
Click to expand...
Click to collapse
Now it's clear why I didn't see it in the Bluetooth device list.
So you must FIRST pair a Xiaomi Smart Pen, and only AFTER should it recognize the Lenovo Precision Pen 2, right?
Will it work up to how long? Factory Reset/Xiaomi Smart Pen unpair or even less?

fogman79 said:
Now it's clear why I didn't see it in the Bluetooth device list.
So you must FIRST pair a Xiaomi Smart Pen, and only AFTER should it recognize the Lenovo Precision Pen 2, right?
Will it work up to how long? Factory Reset/Xiaomi Smart Pen unpair or even less?
Click to expand...
Click to collapse
What happened later, i also need to buy stylus for mi pad. Pleaaaase halp mee.

I see Works PRO Stylus for Xiaomi pad 5 on Amazon. It claims to be working with Pad 5 and cost just $12.99 for pack of 3. Anyone tried it?
https://tinyurl.com/4sz289wk

sangin80 said:
Bluetooth. Pairing
I'm sorry I didn't provide you with accurate information.
You can first recognize MiPad 5 pen and then use it.
Click to expand...
Click to collapse
Hi sangin80, i didnt quite understand. Can you please elaborate?

fallute said:
Hi sangin80, i didnt quite understand. Can you please elaborate?
Click to expand...
Click to collapse
First, you have to pair the Xiaomi pencil to pair the Lenovo pen.

sangin80 said:
First, you have to pair the Xiaomi pencil to pair the Lenovo pen.
Click to expand...
Click to collapse
Hi sangin80 , Does Lenovo precision pen 2 will work without pairing with mi pad 5 and does Lenovo precision pen 2 support palm rejection (without pairing) if not. Does it support plam rejection after pairing

im sorry this is too late but if you still have the lenovo pen can you try rooting and installing a lsposed module named maxmipad it can disable the bluetooth authentication so in theory lenovo pen should work after that
fogman79 said:
Now it's clear why I didn't see it in the Bluetooth device list.
So you must FIRST pair a Xiaomi Smart Pen, and only AFTER should it recognize the Lenovo Precision Pen 2, right?
Will it work up to how long? Factory Reset/Xiaomi Smart Pen unpair or even less?
Click to expand...
Click to collapse

A good capacitive (no battery to charge) pen Yesido ST 01. Inexpensive and reliable

d2nesy said:
A good capacitive (no battery to charge) pen Yesido ST 01. Inexpensive and reliable
Click to expand...
Click to collapse
So its like all universal capacitive pen. It doesn't have palm rejection unless you use a glove or you're getting used to writing while hovering your palm

Question Recommendations for fine point wireless stylus that can (reverse) charge from the back of the Pixel 6 Pro?

I used Magic Eraser for the first time and it would be great to always have a fine point stylus on hand to use with it like my wife and I have/had with the Samsung Note 10+.
Would also be great to be able to reverse charge over through the back of the phone, and be able to mount/keep the stylus somewhere on the phone/case too.
I'm probably dreaming a little, but I'd appreciate if anyone had any recommendations for stylus and/or a holder/mount for one.

To partially answer my own question, I finally found some news articles from a year ago announcing that there are general plans to develop universal styluses which recharge via NFC. I don't see any more recent news and can't find any actual products yet. Wah.
New collaboration to bring NFC wireless charging to USI pens for mobile devices
You might soon be able to charge your Chromebook USI stylus via NFC
There are also stylus pouches that either magnetically or otherwise stick to phones or cases.