Order Number: 714423
Product Name: Radio Master Tx16s Mk11 2.4ghz 16ch Radio Transmitter Sku: Hp157-Tx16smk11-4in1-M2
Brand: RadioMaster
Tx powers off by itself and can be replicated by a tap on the casing side. Battrey has to be removed and reinserted to get Tx to power up.
Have ensured battery is securely plugged into the unit.
I’m sorry your new TX16S Mk II is powering off unexpectedly. A shutdown that you can trigger with a light tap is usually a momentary break in the internal power path rather than firmware, so a couple of quick checks often clear it:
1 Two easy things to try first (≈ 5 min)
| Where to look | What to do | Why it helps |
|---|---|---|
| Battery tray & contacts | Remove the rear cover and make sure both 18650 cells sit tight. If they can move, add a 1 mm foam pad to the door to keep them pressed forward. Also double check your cells have the protruding head, as if the are flat of both sides they may not fit properly, as per the official RM 18650 cells | Even a hairline gap can break power when the case is tapped. |
| Main ribbon cable | If you are comfortable doing this, Remove the six rear screws and lift off the back cover to expose the ribbon cable. With the back still off, locate the wide flat cable behind the right gimbal. Flip the black latch up, push the cable fully home, then lock it back down. | If the FPC isn’t fully seated, a knock on that side can cut the 3 V rail and switch the radio off. |
2 Still shutting down? Let RadioMaster handle the warranty swap
RadioMaster ask that all technical issues go through their help‑desk so they can log the fault and route you to the nearest service centre:
- Submit a ticket at https://radiomasterrc.freshdesk.com (look for “New support ticket”), or
- E‑mail support@radiomasterrc.freshdesk.com with your order number, a short description and (if possible) a 10 second video that shows the tap‑to‑power‑off behaviour.
They have authorised repair agents in both the UK and EU, so if the radio needs service or replacement it will be handled locally and quickly. We’ll stay copied on the ticket and are happy to chase anything on your behalf.
Let me know how you get on with the two quick checks. If you have any trouble opening a help‑desk ticket, just reply here and I’ll do it for you.
Hello James good day,
Sorry to hear about this. Radiomaster have asked that we direct all technical questions directly to their helpdesk - Submit a ticket : Radiomaster Support. Or you can email them directly at support@radiomasterrc.freshdesk.com
Radiomaster have repair agents in the UK and EU, so if the item needs replacement it will be easy to return it to your local repair centre.
That said we are still more than happy to help you if you prefer to deal directly this us, we are only suggesting you talk directly with Radiomaster rather that us acting as the middle man. Also if you do have any issues or frustrations dealing with Radiomaster, please let us know so we can step in and talk with Radiomaster on your behalf.
Kind Regards
Alex
Unmanned Tech Support
Join our community at dronetrest.com, or on Discord.
Hello Alex
I have instigated the procedures outlined within your email. Unfortunately I have to report it has made no difference in connection with the reported issue. I would be grateful if you would carry out the next part of the procedural for me.
Kind Regards
James Gale.
Sure thing, could you send over a quick video showing the issue as they have requested that we provide this for them so they can fully understand the issue.
Can you also please confirm what batteries you are using with your radio, are they the official Radiomaster 18650 cells?
Kind Regards
Alex
Unmanned Tech Support
Join our community at dronetrest.com, or on Discord.
Hello Alex,
Please can you respond to my email below.
James
Alex,
I have followed your instructions and continued to send you emails which you appear to be ignoring, please reinstate your contact with me.
James
I’m really sorry for the delay and any frustration this has caused. I’d like to get this sorted for you as quickly as possible. To escalate the case with RadioMaster, they’ve asked us to provide:
-
A short video (10–15 seconds) clearly showing the “tap-to-power-off” behaviour, but also clearly showing the batteries and how they are inserted.
-
The exact battery you’re using (model/manufacturer, or some photos of them, as they need to be the “button head” style battery)
Once we have those two items, we’ll submit everything straight to RadioMaster’s support team and press for a prompt resolution.
If you need help capturing the video or uploading it, just let me know. As soon as we have your footage and battery details, I’ll update you within with the next steps.
Thanks again for your patience, we want to make sure your radio is back to 100% as soon as possible.
Hello,
Please find attached the photo showing battery installation, will try the video on a separate email as the fie is too big…
James
Hello
I have sent you a short video of the problem via “we transfer”.
James
Hi James good morning,
I couldn’t see the link to your we transfer?
Regards,
David
Unmanned Tech Support
Hi David,
Please try the link below/
Recipients
replies+80f6bfecf1678606fd6cfdbdb0f0b532@www.dronetrest.com |
- |
Download link
https://we.tl/t-gyAilezKn2 |
1 item |
tx16 fault.zip
32.6 MB
|
James
Hi James good day,
Thank you for sending that through. I have sent through your description, images and the video link to RM and have asked for their assistance.
As soon as I hear back from them I will revert back and update you. RadioMaster usually responds pretty quickly so I’m sure we will get to a resolution quite quickly.
I do apologise for the delay here.
If there is anything else I can assist with in the meantime please do let me know and I will try to assist where ever possible.
Regards,
David
Unmanned Tech Support
Hi James good day,
We had some feedback from RM regarding you radio, they are happy to assist, they would just like to try and isolate the issue to either the battery or the radio itself.
I have included the original message from RM below for your reference:
Hi unmannedtech,
You can try shaking the battery plug to see if it causes the remote control to shut down. If so, it might be due to poor contact of the battery plug or poor soldering of the battery port at the remote control end.
Then you can try using any other 2S battery to rule out the problem of poor contact of the battery plug. After comparing with other batteries, it can be determined whether the problem lies with the remote control or the battery. This way, the issue can be accurately identified. We can replace the corresponding accessories for you based on your test conclusion to quickly solve the problem.
Kind regards,
Radiomaster support team
Would you be able to assist with this testing for them and then we can get this sorted out for you? Hopefully it is only the battery and we can avoid getting your complete radio returned.
If there is anything else I can assist with in the meantime, please do let me know.
Regards,
David
Unmanned Tech Support
Hello,
I have carried out both of the further tests detailed below.
The result being the fault is persisting, please advise.
Kind Regards
James Gale
Hi James,
We’ve now inspected your returned radio and confirmed the fault. Our testing suggests the issue is most likely related to one of the ribbon cables.
However, because the unit has been modified with a custom CNC kit, Radiomaster are not willing to authorise a warranty replacement. Their policy is to assess any modified units directly, so the next step would be to send it to their local repair centre for further inspection and repair. The only drawback is that their repair centre can be quite slow — the process may take around 2–4 weeks. If they determine the fault is not covered under warranty, the repair may also be a chargeable service. I’ll update you as soon as we have confirmation from them.
As a goodwill gesture, if you’d prefer not to wait for that process, we can offer to exchange your unit for a brand‑new TX16 radio. The only caveat is that we wouldn’t be able to transfer the blue CNC parts from your current radio due to time constraints at the moment. If you would like we can return your radio back to return it to original state, and then we can get it swapped for you for a new one (however extra shipping costs will need to be covered for the second return)
Please let me know which option you’d like to proceed with, and we’ll arrange it promptly.