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Cool, I was a bit afraid of ErskyTX dying. Still refuse to replace my radio with anything else! The only thing I'd add is when programming mixes and asigning switches, if I press PB3 or PB4 it does not work. I have to press PB1 or PB2 and manually scroll to PB3 and PB4. I never said anything because...

Hi Mike, I have been entering this post for years in a regular basis for updating my radio, and I am surprised there is no update since August. I wonder why. Is there a new link? Or is everybody in edge tx? Or is just that the current software is perfect? Nothing that I feel I need to implant, just ...

I got response from Opentx guys. Channels 9-16 are failsafe. So configured channel 11 throttle failsafe (original throttle channel is 3, so 3+8=11) to -100. Will test. but probably working. This forum is so nice. :D I need to find what the problem is elsewhere. :) Please update with your news, beca...

Hello,

I am in the phase 3 now. Resistor has been removed, firmware flashed and I switched it on and off about 60 times. So far it seems to work now! I will update if it fails. Hope to not to have to update this thread, lol.

So, if I understood correctly: I should flash the ersky from march 16th version and discard the two versions you sent me in private message, And remove the resistor I marked in red here: photo_2021-04-09_07-13-08.jpg But before doing that, disconnect IO13, which is the red wire right side down. Righ...

I have some news here. I flashed the latest software you sent me in private message, and I have been switching On and Off the radio for a while. I lost the count of times I did it and it worked until I said; "Last time and I call it a day" then it failed and got the usual error. Then I res...

Message edited, experimenting...

Another issue, I tried to restore the eeprom with my radio and it gives a "bad SD card error" Card works, because I still have sounds and can save new eeproms and models. So I restored the eeprom with the computer, and it worked. I flashed back the latest erskytx software, and now the whee...

Hi Mike, bad news here. Flashed the new version and now the encoder wheel and center button does not work at all. The four arrows at the corners keep working though. I switched on and off the radio 5 times, and on the 5th the first model was damaged: Name dissapeared, and from the 8 channels I had p...

Hi Mike, I keep having issues with this. I cannot tell you what makes the mistakes appear. I tried everything I could think of, switches to one side, to the other, module on, off, no module, and the eeprom errors come themselves from time to time. Sometimes the first radio model is deleted. Sometime...

Hi, as a small update here, I must say everything works as it should. I am very happy, and yet again, I could have not done it without your help!

I think I have Mosfets on some of my radios charging circuit. Will try charging them with a B6 charger tomorrow. But I have NiMh batteries on my radios. I have never charged any Lithium battery inside a radio. I like my radios a lot ;) :P :mrgreen: João Well, those li ions are super safe. I have ne...

Between the two pads of the original diode I got right now 0,04v when charging.
0,00 when not charging.

By the way, charger said battery is full now. (8.2v) radio said 8.3, and poli in battery said 8.07v

Great to know that is normal to disconnect it when on. :D At this very moment: Charger says 8,19v, 9xtreme said 8.1v (I might need to adjust it manually) Polimeter in battery said 7,94v Battery in place, charging, polimeter in mosfet, positive in center, negative in left leg it said 8,20 Battery in ...

Quick update before I replace the mosfet:
As it is right now, it charges the radio when OFF, but does not charge when ON.

This mosfet might be causing an issue too, because when I checked the voltage with a polimeter it said 7,7 volts, and just plugged the charger it says 8.20

jhsa wrote: ↑Fri Mar 19, 2021 5:57 pm Oh, wait there, You didn't say you were charging Lithium batteries. I thought you were using some HiMh or NiCad batteries..

João

Li ion, chip protected, no balance plug.
https://a.aliexpress.com/_mOkcbsf

Something else to consider? Seems to be fine so far...

Ok, just in case, I will replace the mosfet.

But quick question, I am charging it with an Imax B6 charger, so I select "li ion" charge in thr menu and the desired Amps. Would it be OK? No idea at how many volts it charges.

Hi Mike, yep, you are right. I tried this other way but I have some issues: With the radio On, it does not charge (connection error). Not that is a problem, but just to be sure everything is OK. With the radio off, the mosfet gets hot, melts the soldering, when charging 1A. Any ideas? Attached new p...

Hi everybody, I have some issues here, and I cannot find the main problem. I tested charging the radio with a charger I had around here, output 12V 1A, center positive. I checked it for like 3 seconds or so, and the voltage increased in those seconds like 0,1v. Looked like it worked, so I unplugged ...

Thanks for the diagram, Joao, and thanks for the part, Mike. That should be a very easy and well worth add to my radio.
I am ordering the parts right now.
It seems there is always something else I can add in the radio, which is great!

Oh, thanks for pointing my mistake! I have been taking a long look at it on the web, and well, basically I don't even really know how to look for it, lol. So unless some of you know the name of that mostfet in the t092 version, I think I will order the SMD mosfet you said, which if I am not mistaken...

Go to the first post if this thread: https://openrcforums.com/forum/viewtopic.php?f=126&t=10531&hilit=9xtreme . Download the file 9xtreme_schematic.pdf. At the top of the diagram you will see Q3, this is a P-Channel MOSFET (AO3407A SOT23 package). This is wired as a reverse polarity protect...

Found the forum thread.. https://openrcforums.com/forum/viewtopic.php?f=95&t=8210 João My godness, after reading your thread, this is me: https://www.youtube.com/watch?v=9CS7j5I6aOc Way too much info and diagrams that I am afraid I cannot understand, lol. Your idea might be an overkill for me. ...

Has anybody more info about it?

bob195558 wrote: ↑Fri Feb 19, 2021 3:46 pm Have you seen this, Reverse Current Protection Mod for 9xtreme
https://openrcforums.com/forum/viewtopi ... 126&t=7745

Yes sir, and I did it long time ago, but I dont know if that mod is only for plugging the battery the wrong way, or if also works for the charging port.

Hey, small update here. I have the jack almost in the way, once this chinese new year ends it will be shipped. I took a look at the radio and I will remove that diode as you pointed me. Due to mistakes happen I think it would be great to keep some sort of reverse polarity protection there. Can I ins...

The diode is on the "other" side of the board, so to replace it will require the board to be removed. You could, however, just solder a wire across it without removing the board. Mike Thanks! No probs at all removing that board. The problem would be the other side of the radio. There are ...

The diode is on the back board, near where the wires from the charge socket connect. Mike Great news is in the easy side of the radio! I did not want to touch the zillion things I have installed. Ok, I have been googling a while, and the connector is 5.5mm x 2.1mm. Ill get one and I will wire it to...

If I remember well the 9x has a diode in the charge path so you'd need to remove that or it would mess with the voltage measurement. And it's not great to charge without balancing/protecting the individual cells. Hi, it is a pack with a built in chip, so it works good with no balance plug. Let me k...

Hi guys, this probably has been asked to death but can't find much info. I want to use the charging port of the Th9xb. I am using a couple of li ions 18650 with no balance plug, so I think I could start using that port instead of forcing the back tray of the radio, because the battery is a super tig...