Tichome Mini Dead

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KSbacker11
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Tichome Mini Dead

Post by KSbacker11 » Tue Apr 02, 2019 3:43 am

I got the Tichome Mini for Christmas in 2017, but the battery no longer holds a charge and now the speaker will not stay on. It will power on, but shortly after will die. I’ve made sure the cord is charging, but it is still not staying on.

I saw that there was a one year warranty, but what about after that? The speaker isn’t even a year and a half old.

I even backed the Ticwatch 2 on Kickstarter, but it looks like they don't even sell the Tichome mini anymore. If Mobvoi realized that their batteries are bad enough to pull them off the shelves, I sincerely hope that they will still help out your loyal customers who believed in them.

Has anyone cracked one of these things open and tried to replace the battery?

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eferra
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Re: Tichome Mini Dead

Post by eferra » Thu Apr 25, 2019 10:31 pm

I have exactly the same problem and I also purchased it for Christmas 2017... :x

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Brint3
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Re: Tichome Mini Dead

Post by Brint3 » Mon May 06, 2019 1:34 am

I received my Tichome Mini as a Christmas present in 2017. Neither I nor the gift giver have an order number, receipt, or any other proof of purchase. All I have is a dead device. For a while, I could coax it on by repeatedly resetting, powering down, power cycling, and powering up. But then it quit in the middle of a radio broadcast. When I try to power cycle or factory reset, the lights blink as though something were happening, but then...nothing. So I disconnected the mini-USB connector and pressed the power button. Presto, no lights, no activity, no nothing. It's reasonable to assume, therefore, that the battery is bad. There have been similar reports. So, just as with other products with non-user-replacable batteries, (notably some Apple phones), I decided to find and replace the battery. I have been able to loosen the case just above the metal band, but something is preventing it from opening completely. It's as though the two case halves continue to be joined near the center. Beneath the rubber cover on the bottom are four screws, which I have undone. But there's a black button with no evidence of how to remove it. This may be what's holding the case together. If anyone knows anything about this, please let me know or post here. Also, if you want to know how to get as far as I have, just write or post. I'll be pleased to share. Mobvoi insists that what I'm trying to do is impossible, citing "smartphones" as evidence. But I've never seen a smartphone or tablet that couldn't be entered.

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eferra
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Re: Tichome Mini Dead

Post by eferra » Thu May 09, 2019 11:01 pm

At this point I I'm inclined to think this issue might have been caused by Mobvoi. I managed to open the mini and replaced the battery but it keeps acting exactly as before. If you want to try it out yourselves, remove the rubber padding glued to the bottom of the unit and this will give you access to 4 screws.

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eferra
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Re: Tichome Mini Dead

Post by eferra » Thu May 09, 2019 11:19 pm

Fixed!

The original battery has 3 wires going to the connector, you can use a new battery with only +- wires using the original connector. Just leave the center one unplugged.

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byrontut
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Tichome Mini Dead

Post by byrontut » Sat May 18, 2019 8:59 pm

dont know Steve, the output on my big HP charger the charger weighs more than my Mini is 19v but its 180watt and I dont think I would plug that into my Mini even if the plug did fit.....

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powerkatwedel
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Re: Tichome Mini Dead

Post by powerkatwedel » Thu May 23, 2019 1:28 pm

eferra - what battery did you use (link) ? Does the unit function as it did with the original battery and all 3 wires? Thank's for the help.

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2xaa
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Re: Tichome Mini Dead

Post by 2xaa » Mon Jul 15, 2019 8:08 am

I have a similar issue, the battery won't stay charged. Though it works fine on power. And again this was November/December 2017.

Maybe a batch issue?

I was going to claim on the 2 year EU warranty but the form requires a serial number. I moved house a couple of months ago and finally threw out the box.
As far as I can tell that's the only place with the serial number for the TicHome Mini...

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egoapto
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Re: Tichome Mini Dead

Post by egoapto » Sat Nov 16, 2019 11:01 pm

I fixed mine and it's as good as new.
The battery is a 18650 3.7V rechargeable lithium-ion. There were higher capacity batteries on ebay but I chose a similar capacity to the existing.

Repair:
Take a thin blade which is not sharp. A butter knife or feeler gauge will work.
Use it to gently pry around the edge of the rubber seal underneath the device.
This seal is glued on. The seal has a couple of raised nubs that fit into screw holes, so it's best not to damage these.
Once the edge of the rubber is sufficiently free you can peel the rubber off. I have done this a few times and been able to reattach the rubber with the existing adhesive.

Remove the four exposed screws and gently work apart the two halves (coloured base and silver rim) of the device apart. There is no need to use tools between the halves for this.
Note that there are multiple cables joining the two halves, so take care not to tug on these.

Pay attention to where the battery cable connects, and also note that another identical spare port exists on the circuit board- when reassembling you don't want to plug into the wrong port. (I did this and it took a while to realise why the two halves weren't aligning.)
Disconnect the battery.
Take out the two screws covering the battery and remove the cover. Remove the battery.

Take a modelling knife and gently cut down the length of the plastic cover concealing the battery and charging circuit. Take care not to damage the contents. Use the knife to remove the paper insulators at each end. I was only able to save one, but these are easy to substitute. Metal strips are welded from each battery terminal to the circuit, so you can't simply unsolder. Use the modelling knife to very carefully cut these off the battery, starting at the negative end (this frees the circuit board to move). You want to do as little damage to the strips as possible. (I damaged the short strip that connects under the circuit to the battery positive- I actually replaced this with solder braid, but wire can be used). Again there is an insulator under the circuit that ideally you want to reuse.

Take your new battery and a large soldering iron. Pre-solder the metal strips (or replacement wires). Solder the positive terminal end first, allow to cool enough to then reapply the insulator (or electrical tape to substitute) that sits between the terminal and circuit. Fold the circuit into position, then solder the negative end for a snug fit. Apply the end insulators. I then used heat shrink over the entire battery for a neat and tight cover, but electrical tape can be used.

Reassemble everything, watching for the right battery port. Fully charge the device before use.
I hope this helps someone!

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alexnechai5
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Re: Tichome Mini Dead

Post by alexnechai5 » Sat May 16, 2020 2:07 pm

I had a similar problem, I fought with it for a very long time. I went to the master, asked people who might know how to deal with her, but nothing helped me. I already thought of dropping my hands and throwing them in the trash. But, as it always happens, suddenly I stumbled upon an old soldering iron and decided to fix it myself. Then I noticed that the Desoldering Station, which is simply necessary, is missing and I decided to order it online. The best option was at . I am very grateful to them, because a very high-quality product that helped me fix my thing

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