Battery firmware lockout: Difference between revisions

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===Power tools===

Ryobi

Power tool manufacturers such as Ryobi and Makita are known to lock battery backs, causing good ones to fail and ended up in repair centers, or worse, landfills<ref>https://www.youtube.com/watch?v=NQ_lyDyzEHY</ref>. Repair technicians who know how to "unbrick" the BMS are capable of reviving these units with perfect condition, reducing e-waste.

===Electric vehicles===

Tesla

Tesla cuts the range of some Model S and Model X by up to 20% by an OTA update. Some of the batteries became totally unusable, showing a "BMS_u029" error. Some users are able to reverse the change by flashing an older firmware, other users are forced to replace the entire battery pack, costing over $15,000<ref name=":0">{{Cite web |last=Crandall |first=Christine |date=2023-05-18 |title=How Tesla’s New OTA Software Update Cut EV Range By A Massive 20%, Owners Move To Sue |url=https://www.hotcars.com/tesla-software-update-cut-ev-range-owners-move-to-sue/ |archive-url=https://web.archive.org/web/20250413101832/https://www.hotcars.com/tesla-software-update-cut-ev-range-owners-move-to-sue/ |archive-date=2025-04-13 |access-date=2025-09-13 |website=Hotcars}}</ref>.

==Consumer reactions==

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==Lawsuits==

Tesla

Four plaintiffs are suing Tesla over an automatic over-the-air (OTA) software update that they say reduced the driving range of their vehicles by 20 percent. Forced updates by Tesla may violate California's Computer Fraud and Abuse Act and the Unfair Competition Law<ref name=":0" />.

==References==

@@ Line 34: / Line 34: @@
 ===Power tools===
-Ryobi
+Power tool manufacturers such as Ryobi and Makita are known to lock battery backs, causing good ones to fail and ended up in repair centers, or worse, landfills<ref>https://www.youtube.com/watch?v=NQ_lyDyzEHY</ref>. Repair technicians who know how to "unbrick" the BMS are capable of reviving these units with perfect condition, reducing e-waste.
 ===Electric vehicles===
-Tesla
+Tesla cuts the range of some Model S and Model X by up to 20% by an OTA update. Some of the batteries became totally unusable, showing a "BMS_u029" error. Some users are able to reverse the change by flashing an older firmware, other users are forced to replace the entire battery pack, costing over $15,000<ref name=":0">{{Cite web |last=Crandall |first=Christine |date=2023-05-18 |title=How Tesla’s New OTA Software Update Cut EV Range By A Massive 20%, Owners Move To Sue |url=https://www.hotcars.com/tesla-software-update-cut-ev-range-owners-move-to-sue/ |archive-url=https://web.archive.org/web/20250413101832/https://www.hotcars.com/tesla-software-update-cut-ev-range-owners-move-to-sue/ |archive-date=2025-04-13 |access-date=2025-09-13 |website=Hotcars}}</ref>.
 ==Consumer reactions==
@@ Line 51: / Line 51: @@
 ==Lawsuits==
-Tesla
+Four plaintiffs are suing Tesla over an automatic over-the-air (OTA) software update that they say reduced the driving range of their vehicles by 20 percent. Forced updates by Tesla may violate California's Computer Fraud and Abuse Act and the Unfair Competition Law<ref name=":0" />.
 ==References==