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==== Hardware faults ==== |
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Since the last update we have created testing banks to test for mechanical issues in multiple devices simultaneously. Designed and printed by @maximephan, they're awesome and have saved us a lot of time! While the rate of mechanical issues has been relatively low (around 4%), the significant number of messages we have received about MicroSD cards failing over time has convinced us to replace all of them with better ones. We discovered that this issue is caused by the cutting off of power to the MicroSD card when the FunKey S is turned off using the Instant Action feature. As the microcontrollers inside our chosen MicroSD cards are still performing operations when power is shut off to them, they tend to break over time. With each manufacturer having their own microcontroller with little to no documentation available online, we have been unable to solve this issue with the current MicroSD cards and have therefore decided to source replacement cards that do not malfunction when their power source is shut off. To simultaneously test the many MicroSD card candidates that we received, we created another set of testing banks that use electro-magnets to turn FunKey S systems on and off while constantly writing data to them. The most promising of these cards not only does not malfunction under the testing conditions, but also meets the U3 standard with a write speed of 30 MB/s. After the significant shipment delays, upgrading the MicroSD cards at no cost to backers is the very least that we can do. We'll continue to keep everyone informed about the state of the MicroSD cards, but for now this card appears to be a great candidate! |
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[[File:A18-V1.mp4|center|256px|alt:Video of a FunKey S testing machine.]] |
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[[File:A18-I1.png|center|256px|alt:Image of the FunKey S voltage being tested.]] |
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Only 600 of the 3100 systems were sent out before we halted shipments, which is why most of you have not yet received a tracking number. Before we resume shipments, the manufacturing facility will reinspect all remaining units and make any necessary corrections. If you received a system with one or more faults, send us a message via Kickstarter or [mailto:support@funkey-project.com email] and we will repair your system at no additional cost to you. Conversely, let us know if you're part of the majority that received their FunKey S without any issues (several people [https://www.bilibili.com/s/video/BV1gf4y1e7bz already have]), as knowing the number of issue-free systems is just as important. We would like to again thank our amazing Discord community for hastily reporting these issues to us, as it was only thanks to them that we were able to stop the remaining shipments in time. If you haven't yet, we encourage you to join the [https://discord.gg/wRvWwRAY commununity Discord server], as it is a great platform to discuss and share your thoughts about the FunKey S, whether you've ordered one or not. While we always try to read and answer as many comments as we can, being on the community Discord is one of the best ways to get answers and updates about the FunKey S. |
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Revision as of 20:46, 8 January 2021
Hardware faults
Since the last update we have created testing banks to test for mechanical issues in multiple devices simultaneously. Designed and printed by @maximephan, they're awesome and have saved us a lot of time! While the rate of mechanical issues has been relatively low (around 4%), the significant number of messages we have received about MicroSD cards failing over time has convinced us to replace all of them with better ones. We discovered that this issue is caused by the cutting off of power to the MicroSD card when the FunKey S is turned off using the Instant Action feature. As the microcontrollers inside our chosen MicroSD cards are still performing operations when power is shut off to them, they tend to break over time. With each manufacturer having their own microcontroller with little to no documentation available online, we have been unable to solve this issue with the current MicroSD cards and have therefore decided to source replacement cards that do not malfunction when their power source is shut off. To simultaneously test the many MicroSD card candidates that we received, we created another set of testing banks that use electro-magnets to turn FunKey S systems on and off while constantly writing data to them. The most promising of these cards not only does not malfunction under the testing conditions, but also meets the U3 standard with a write speed of 30 MB/s. After the significant shipment delays, upgrading the MicroSD cards at no cost to backers is the very least that we can do. We'll continue to keep everyone informed about the state of the MicroSD cards, but for now this card appears to be a great candidate!
