Last week, we were informed that the AC1200 WiFi card was not functioning properly with the AIO V2’s internal USB-C port. Upon investigation, we discovered that the threshold for the internal USB-C current-limiting switch was configured to 0.68A, whereas it should have been set to 1.58A.
While 0.68A meets the requirements for USB 2.0 (meaning USB 2.0 devices work without issue), it causes insufficient power delivery when using USB 3.0 devices. To resolve this issue, the resistor shown in the image below needs to be replaced with a 4.3kΩ resistor (0402 package size). It doesn’t need to be a 4.3kΩ resistor. The current limit threshold is calculated using the formula: I(limit) = 6.8k/Rset. The maximum current the MT9700 can handle is 2A, so the minimum resistor is 3.4kΩ. So any 0402 package size resistor with a value between 5.6kΩ and 3.4kΩ would work.
Why did this issue occur despite functional testing?
The test script I developed was not fully comprehensive. During the USB test, the script only enabled power to the USB interface and used the lsusb command to verify if a new USB 3.0 device was detected. It did not perform a test of the actual WiFi connection (active data load), which is where the power insufficiency occurs.
Affected Orders: All AIO v2 orders shipped before last Friday (January 16). The RJ45 Ethernet and USB 3.0 expansion board is not involved.
Compensation Plan:
Since we currently have no stock available for direct replacements, the principle behind these compensation and replacement solutions is that you will not incur any additional expenses. Users who retain the product, either repair it themselves or mail it back for repair, will receive a partial refund as a sincere apology.
I plan to manufacture a small batch of the AIO v2. But it depends on our remaining cash flow after this compensation plan is completed. Since we are offering an option for an immediate full refund upon proof of destruction (to save you the wait time for return shipping), we are absorbing the total financial loss on those units. It’s not just about the profit; it includes the money I already spent on manufacturing and shipping. This significantly impacts the funds available for the next batch.
Here are the specific compensation options:
Option 1: Self-Repair and Receive a $20 Refund (This amount is roughly equivalent to the profit I earn from a single unit.). Any damage caused during the repair process will be covered by us. If the PCB is damaged during your attempt, you can send it back for repair, and we will cover all associated shipping costs.
Option 2: Return for Repair and Receive a $10 Refund. We will cover all associated shipping costs.
Option 3: Return for a Full Refund. We will cover all associated shipping costs. We will issue the refund immediately after the carrier picks up the package. Alternatively, if you have lost confidence in us and do not wish to wait for the carrier pickup to receive your refund, you may record a video of yourself destroying the PCB as requested, and we will issue the refund immediately.
If you choose to receive your compensation as a store coupon instead of cash, we will add an extra $5 to the amount. As mentioned earlier, we may not be able to produce and restock the AIO v2 again in the short term. Therefore, if you want to use the coupon code for the AIO v2, you will have to wait for it to restock. But you can switch to cash compensation at any time before redeeming if you don’t want to wait any longer.
How to Apply for Compensation:
Please fill in this Google form: https://forms.gle/XnY1pY4sKFc54fLBA. We process requests submitted the previous day on every business day.
I am deeply grateful to everyone who has spoken up for me on forums and Reddit. Your kindness has been a source of great comfort to me during this difficult time.
However, the fact remains that I delivered a product that did not match what I advertised, and I will not shy away from taking responsibility for that. I am committed to ensuring that you ultimately receive a fully functional product, and I will be providing cash compensation to the affected users as promised.
))
Cheers mate!
