VL2020 Battery - amzn.to/3JsBpA6 Solder Iron - amzn.to/30msPQc Flux - amzn.to/30heYuj Superglue - amzn.to/3wKEyE1 Fob Cover to help the fob stay together - amzn.to/3HtBuBs Replacement case - amzn.to/3DgSatf

The fact the battery is soldered in, and you have to break open the key is frankly ridiculous. What exactly they were thinking when they designed this, I will never know! Great video thanks!

@baconstriiper7337

Жыл бұрын

Probs get people to buy a new key everytime the battery is dead

@chriskuta6178

Жыл бұрын

Those batteries are rechargeable and charge while you drive. They were thinking you'd get rid of the car before the battery hit the end of its usable life.

@mikeharmon8733

Жыл бұрын

@@chriskuta6178 Where did you get this information from? The battery is a rechargeable type. However, there is no inductive charging circuitry presence on the circuit board and the coil you see is an RF antenna for the remote operation.

@hamsandwich152

10 ай бұрын

The manual for the car states that driving the car charges the key😂

@chriskuta6178

10 ай бұрын

@@mikeharmon8733 car keys are a decent part of how I make my living. While my place of business would not touch a sealed key like that (at least, not to change the battery, would happily make a new one), I can tell you it has what we would call an nb circuit board, whereby the immobiliser chip is hard wired to the circuitry of the remote and most definitely has an induction circuit (that is how all non keyless factory fitted immobiliser systems work).

Thank you for the video. It was strait forward and I was able to obtain batteries and everything needed to do the job. If you are watching this and thinking you can do it too, well rest assured it is not an easy job. The fob does not come appart with any cooperation. It will fight you for at least an hour. Besides the screw driver; I employed a very sharp knife, and acetone to disove any glue (somehow I did not bleed much). Once appart, sodering the old battery out and new one in was a challenge due to the micro board. I did not have a radio frequency monitor, so I had to make a bazillion trips from my work bench to the car, and for whatever reason the transponder always worked outside the fob, but put back together never did, I think it was a contack issue, but after two dozen attempts everything gets foggy. It is dark now and it is working. What I learned is that crazy glue only tacks it together lightly, and that the silicon jacket is essential. I have one more fob to do. I am nolonger excited to go at it. I will wait for it to go completely dead. I also know there will be blood. Great video.

@KeyFobRob

6 ай бұрын

It's definitely a headache 😔. Good news is, this should only have to be done once, maybe twice over the lifetime of the car.

Just wanna leave a comment to express my gratitude to the video creator. Your tutorial is wonderful and I made it!

@KeyFobRob

Жыл бұрын

Glad it helped!

Thanks Rob 👍🏻 I had no idea what was going on inside the key fob for my Mini One Seven. Now, thanks to your video, I do! Luckily fir me I also own a soldering iron.

@KeyFobRob

Жыл бұрын

Good stuff! Glad the video was helpful

Very detailed. Quite the process for this one!

@KeyFobRob

2 жыл бұрын

Yes indeed!

Thank you for your video, this was very useful and I followed your instructions and changed the battery

@KeyFobRob

Жыл бұрын

Glad it helped

It was a great video.... until the janky bit of gluing at the end! Just run a nice bead around the perimeter and mate the 2 halves, I did that and it was perfect. (Still gets a thumbs-up though - very useful content)

Nice work!

@KeyFobRob

2 жыл бұрын

Thanks!

What temp or setting for the soldering gun? And does the soldering wire come with the gun? Is it soldering the two tabs lower when it’s heating it up/soldering? Or do the tabs stay sticking up high? Thanks.

Thank you!!!

@KeyFobRob

2 жыл бұрын

You're welcome!

Thank you ‼️

@KeyFobRob

2 жыл бұрын

You’re welcome 😊

When change the battery, there is an initializing procedure to configure the key?

Great video!

@KeyFobRob

2 жыл бұрын

Thanks!

Wow very good job thanks

@KeyFobRob

19 сағат бұрын

Hopefully it helped

Could you not use the type of silver paint as used to repair rear window heating elements..?? 🤔

My key does not read, vehicle says no key detected, does this mean the battery is dead? I thought the chip was always active and the battery was only for the locks

Utterly fantastic video. I have never soldered anything in my life, I bought the correct battery, bought both a soldering kit, and some flux, followed your excellent tutorial to the letter. But it still isnt working. I have read that these keys charge while the Mini is driving. *So either this new battery is dead, or do I have to reset the key?* My key was working. (I hadnt driven my Mini for years.) I took the battery out fully charged it. Then both keys didnt work, could the battery replacement have done something to the cars sensor?

@normalman5053

6 ай бұрын

I feel your pain. The soldering of the new battery to the board is hard to do. The battery has to be flat against the circuit board, and make a good contact while not touching anything else. I found the contacts had more than enough solder on them, and did not add anymore (as Rob did). Once I got the battery in and working, I found that putting it back together in the case made it not work again. Eventually I got it to work, but it was not pleasant. Also, I heard that story about driving charges the fob too. Its total BS. the key and the transponder have no connection.

Hi Rob, Does this key have a ID44 Chip ? I bought my car with one key, wanted a replacement so got a new shell, cut a copy on new shell blade, and bought an old FOB, reprogrammed the old FOB using lock button + 3 time middle button method, it assigned my new key to the car but the second one won't start the car ? I could not find a ID44 Chip or have no idea why everything works but not starting ? Also thought may be 2006 R52 has limit of 2 primary keys where the previous owner had 2 keys programmed so I may have to delete a slot and add my new one as a primary. Sorry for the long question but I'd really appreciate any help. Thanks so much.

@rdcraig9261

11 ай бұрын

Did you solve this? I have the same issue.

Think I’ll get Timpson to do it for me, looks like a ballache to do

@KeyFobRob

Жыл бұрын

It is. Very easy to muck it up

Hi, i do not have any RF tester any idea what points to measure and what voltage should be there to make sure key fob is working? My problem is the i am in situation that i am not sure what is faulty key fob or receiver in car. I do have mini r50 2004.

@KeyFobRob

6 ай бұрын

If I'm you, I spend the $30 and get an RF tester - ebay.us/1P0RrV

i can't do this!! Where can i have it replaced? Geez!!

Does it need to be reprogrammed by dealer after battery replacement?

@BelRiose2000

2 жыл бұрын

No you can do it yourself.

Tried this and had to drummel the FAB apart. I ordered the same battery and the terminals were different. A complete fail!

The VL2020 you linked has a different configuration than what you showed in the video. I would have to cut the inside of the case to make it fit semi ok

@KeyFobRob

2 ай бұрын

Thanks for the heads up. Sometimes Amazon will switch the listing around on me and my link sends to a different item. Probably happened since this video is 3 years old. The updated link: amzn.to/3JsBpA6

@evanhale7296

2 ай бұрын

@@KeyFobRob no worries at all:) and thanks for making this video. Even though I found out that the batteries I ordered were slightly off. I was still able to test the original battery and found it to still be in good working order. So on to sending my EWS out for testing haha

@evanhale7296

2 ай бұрын

@@KeyFobRob thanks for making this video it really did help.

@KeyFobRob

2 ай бұрын

You're welcome. Best of luck to you in the future

how long does the battery last? I just bought a 2008 with dead battery in FOB. Excellent video - ty

@KeyFobRob

2 жыл бұрын

Should be good for at least 5-7 years

@craigslaunwhite579

Жыл бұрын

I have owned my Mini cooper since 2007. It is now 2022 and the battery is becoming weak. It still works but I must be very close to the car for it to work. I am planning to replace the battery on both my keys.

Do you have to solder tho?

@KeyFobRob

Жыл бұрын

Yes

why is it not possible to change only the battery ? Cause the battery is not soldered, its only the frame.

@Pelt_

25 күн бұрын

The battery is spot welded to the frame

My neighbor Grandpa has R52 with dead battery’s key fob, I’ll try to solder a new battery too, nice vid however how damn BMW mini has done with the horrible design key fob that we have to pay like $500~ if we ask Dealer to replace with a new ones! I say F ..k dealer stealer Thank you the vid , appreciated

@KeyFobRob

2 жыл бұрын

Sure thing. Good luck!!

@shaunjbaird1

Жыл бұрын

Hi after replacing the battery do we have fo do any reprogramming? I'd no idea on that one.. bit worried I'll leave the wifes car stranded

It’s a rechargeable battery, and it charges when the key is in the ignition.

Please add to the description that it requires soldering and gluing back together 🙏

Great video and thanks. Typical German engineering, absolutely ridiculous to have to go through all this just to replace a battery.

@KeyFobRob

Жыл бұрын

Yes it is. You're absolutely right

Sooner buy a new key

Replaced battery in key remote and still doesn’t work. Now next step!

@chrise.2511

5 ай бұрын

Ever fix it?

as if I needed another reason to hate mini coopers.

@KeyFobRob

Жыл бұрын

Yeah - this one is pretty ridiculous

Great video, but I’m just a girl. I’ll stick with the manual buttons 😅

@KeyFobRob

2 ай бұрын

It's definitely a process!

i need to buy a soldering gun just to change a battery xD and a new key cost around 200$ i asked

WTF, who invented this? most key fobs you just open the case and pop a new battery in. GEEZ

@KeyFobRob

Жыл бұрын

Yeah - this one is quite a process

@rogerlairamore207

6 ай бұрын

Yes, but this car was made in England, and they tend to make things better than the United States and Japan

@rogerlairamore207

6 ай бұрын

Your video was helpful thank you for demonstrating

This design is total crap

This seems so stupid! I am not looking forward to doing this with my key......just great.......

@KeyFobRob

Ай бұрын

Yeah - I feel you. It's a pain for sure

What a stupid key design