This is a tutorial on how to disassemble the Dumber Mini in order to replace the battery, screen or other components.

We have officially released the latest update today. Your phone should notify about this within a few days, and you can also update manually in Settings->System->Updates.

This patch includes a Wi-fi calling implementation for the Dumber Mini. You can enable Wi-fi calling in Settings->Network & internet->SIMs. This switches out the entire telephony/VoLTE framework, so if you encounter any connectivity issues, you can switch back to the old one in the same menu. Please also report any problems around calling and texting in this update, either at support@dumbermini.com or by submitting a bug report in the power menu.

We have received reports that the new telephony stack improves battery life in some situations, so if you've had trouble with that, it might be worth giving the option a try even if you don't use Wi-fi calling.

Last month we have created a special wiki where DumberOS users can post feedback on app compatibility. We have taken all the apps with positive results and added them to More Apps. The app lists are now also sorted by popularity and you can browse apps specific to your country, such as banking or mass transit.

We have fixed the low speaker volume issue on the Dumber Mini. This involved some tweaks that also affect regular earpiece volume, which might have gotten a bit loud now. Please let us know if you experience any volume issues - we'll keep working on this until everything is well-tuned.

September update patch notes:

• Experimental Wi-fi calling implementation for Dumber Mini.
• Fixed low speaker volume on the Dumber Mini.
• More Apps updated with a wider app selection based on the app wiki.
• Improved quick settings panel UI and fixed various glitches.
• "Zoom out screen" feature only affects a given app, and not all of the phone's UI.
• Improved App Blocker UI.

Hello DumberOS fans,

We have currently received 1000 preorders for the second batch of Dumber Minis. We expect to receive a shipment of 2000 phones from our manufacturer around mid-November at the latest.

In order to mail our phones to you in a timely fashion and to not overextend ourselves, we will process the first 1000 preorders by December 1st, and later orders will be shipped out before January 15th. This is a cautious estimate, as we don't know yet how the Christmas season will affect our logistics.

The last order that will be sent out by December is #4002.

Hello DumberOS fans,

I've created a simple wiki where you can add and comment on compatible apps based on your experience.

This will be very helpful for new DumberOS users, as well as for us to know what should get fixed, and to make a list of potential additions to our curated app list in More Apps.

Dear Dumber Mini Customers,

As you're likely aware, many of the phones we shipped have experienced various screen-related issues. We're in touch with our manufacturer to get to the root of the problem, but based on what we've learned so far, the issues fall into three categories:

• The phone stops responding to touch after unlocking, but otherwise works fine. This seems to be the most common issue, and we've managed to implement a software fix for it. Your phone should prompt you to download and install the update within 2-3 days. You can also go to Settings -> System -> Updates and update manually.
• The phone's screen goes black after unlocking, and only shutting down the phone returns it to a working state. Unfortunately, we don't currently have a fix for this issue, so we've been replacing all phones affected by it. If your phone is exhibiting this behavior, please get in touch with us for a replacement. Once the dust settles, we'll work on repairing the affected phones, either by replacing the screens or through software fixes, and resell them as refurbished units.
• Other screen issues. Examples include the screen going black after unlocking but recovering after another lock/unlock cycle, or the touchscreen suddenly becoming unresponsive while the phone is already in use. These issues seem to be far less common. If your phone is experiencing one of these problems, or another issue not described above, please get in touch with us.

We've been working hard to keep up with customer support over the past few weeks, but it's possible that we've missed your email or failed to follow up. If you've been waiting for a reply from us for more than a few days, please don't hesitate to remind us about your issue. We apologize if you've been left waiting.

Kind Regards,

Nick & Michal - the Dumber Mini Team

The latest DumberOS update has just been rolled out! Your phone should notify you about it, and you can also update manually in Settings->System->Updates.

• Improved app compatibility (key attestation).
• Security patch updated to June 2026.
• Fixed notification menu crash.
• Fixed app battery usage stats.
• Added Hold button in phone call window.
• D-pad center unlocks phone without activating notifications if no PIN is set.

Seems like the grayscale version is out of stock everywhere, I'll happily by used if anyone is not using theirs.

Hi everyone,

We have already sent an email to everyone who has ordered a phone in the first batch, but I'm posting here in case anyone missed it and just to make the information public.

There have been some delays at the factory, and they currently estimate that they can ship the phones to our warehouse before June 18th. To account for shipping, customs clearance, and warehouse processing, we think it's safe to hope that we can start shipping individual phones on July 2nd. As we'll have almost 1000 packages to ship, this might take up to two weeks. Orders will be processed chronologically, and the first order is #2012, so you estimate your position in the queue.

I realize the shipping estimate I posted a couple of weeks ago was overly optimistic, apologies for that. We'll keep everyone updated as soon as we have more information.

Please get in touch at support@dumbermini.com if you have any requests regarding your order, such as an address change.

Hello DumberOS fans,

A quick update on current availability. Our first shipment of Dumber Minis, coming in June, will consist of 1000 units. These are now sold out. We will be making a subsequent order for 3000 units within a month or two, out of which 1500 will be made for the North American market, and 1500 for the rest of the world. We hope these will ship at the beginning of December, 2026.

Preorders for the December batch are now open for both phone variants!

Good news for our US and Canadian fans - we have just started preorders for the North American version of Dumber Mini!

We're planning to have 3000 phones manufactured by the end of November, and half of these will be the North American model. From our initial assessment, the phones should be compatible with T-Mobile in the US. Information on Canadian carriers will be added as soon as we have prototype units that we can test.

More information and specs on the product page: https://dumbermini.com/products/preorder-dumber-mini-us-version

BankID has recently introduced a new authentication method by scanning a physical ID (photo and NFC). Initial tests indicate that this doesn't work on the Dumber Mini. We're investigating whether this is something we can fix, and we'll also be in touch with the BankID team.

On the other hand, Vipps works totally fine now, including tap-to-pay on the Dumber Mini. However, it has had a difficult history with degoogled phones, so there are no guarantees here.

There is growing political pressure to get these two apps to properly support degoogled phones, so hopefully things will improve in the future.

Hi DumberOS fans,

I'm happy to let you know that we'll receive our first batch of 1000 phones quite a bit earlier than planned. Our initial estimate was very conservative to account for possible delays, but as of now everything seems to be moving ahead of schedule - we've been told the shipment should leave China by the end of May.

Of course, nothing is certain until the phones actually arrive at our UK warehouse, so we'll keep you updated if anything changes.

We still have about 400 phones left to sell from the incoming batch, so if you are thinking about preordering, it is safe to do so within the next few weeks. Once we run out, we'll be making another order for 3000 phones, half of which will be destined for the North American market. These are estimated to be ready by the end of November.

The latest DumberOS update has just been rolled out! Your phone should notify you about it, and you can also update manually in Settings->System->Updates.

• Updated Android security patch to March 2026.
• Added an app installer to the vanilla branch, called "More Apps" with a dozen recommended apps.
• Moved Browser, Organic Maps and Music Player to More Apps.
• Added a "Zoom out screen" button in the recent apps menu, to temporarily increase DPI.
• Fixed Parental Controls in the gapps build.
• Improved PIN entry accuracy.
• Fixed some VoLTE disconnection issues.
• Fix SIM PIN entry dialog layout and physical key support.
• Fixed issue with MicroG updates being removed after reboot.
• Updated MicroG version.