Battery firmware lockout: Difference between revisions

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===Commercial UAVs===

{{Main|DJI}}DJI, a well known commercial UAV manufacturer, locks out the battery after long-term storage, claiming over-discharging damages the battery, even if the chemistry is still recoverable. Users who successfully "revives" the battery packs by charging their cells using a bench power supply and clearing the failure code, reports restored functionality<ref>{{Cite web |date=2024-03-21 |title=Reviving dead batteries - a heads up |url=https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |url-status=live |archive-url=https://web.archive.org/web/20250618000130/https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |archive-date=2025-06-18 |access-date=2025-09-13 |website=MavicPilots}}</ref><ref>{{Cite web |date=2023-08-02 |title=DJI Battery Killer repairing tool |url=https://greyarro.ws/t/dji-battery-killer-repairing-tool/68863 |url-status=live |access-date=2025-09-13 |website=Grey Arrows Drone Club}}</ref><ref>{{Cite web |last=McLoughlin |first=Liam |date=2023-10-01 |title=Repairing the DJI Spark Drone Battery with DJI Battery Killer, CP2112, & 9V battery |url=https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |url-status=live |archive-url=https://web.archive.org/web/20241211065622/https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |archive-date=2024-12-11 |access-date=2025-09-13 |website=Leelum}}</ref><ref>{{Cite web |title=DJI Battery Killer: Reviving Bricked DJI Drone Batteries with CP2112 & BMS Reset |url=https://www.elektroda.com/qa,dji-battery-killer-cp2112-bms-reset.html |url-status=live |website=elektroda}}</ref>. However some users reported "authentication failed"<ref>{{Cite web |date=2024-03-23 |title=Mavic pro battery authentication failed after clear pf |url=https://mavicpilots.com/threads/mavic-pro-battery-authentication-failed-after-clear-pf.144987/ |url-status=live |access-date=2025-09-13 |website=MavicPilots}}</ref> suggesting the possibility of parts serialization<ref>{{Cite web |last=Greenlee |first=Lauren |date=2023-01-17 |title=How Parts Pairing Kills Independent Repair |url=https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |url-status=live |archive-url=https://web.archive.org/web/20250811033531/https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |archive-date=2025-08-11 |access-date=2025-09-13 |website=iFixit}}</ref>.

DJI, a well known commercial UAV manufacturer, locks out the battery after long-term storage, claiming over-discharging damages the battery, even if the chemistry is still recoverable. Users who successfully "revives" the battery packs by charging their cells using a bench power supply and clearing the failure code, reports restored functionality<ref>{{Cite web |date=2024-03-21 |title=Reviving dead batteries - a heads up |url=https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |url-status=live |archive-url=https://web.archive.org/web/20250618000130/https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |archive-date=2025-06-18 |access-date=2025-09-13 |website=MavicPilots}}</ref><ref>{{Cite web |date=2023-08-02 |title=DJI Battery Killer repairing tool |url=https://greyarro.ws/t/dji-battery-killer-repairing-tool/68863 |url-status=live |access-date=2025-09-13 |website=Grey Arrows Drone Club}}</ref><ref>{{Cite web |last=McLoughlin |first=Liam |date=2023-10-01 |title=Repairing the DJI Spark Drone Battery with DJI Battery Killer, CP2112, & 9V battery |url=https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |url-status=live |archive-url=https://web.archive.org/web/20241211065622/https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |archive-date=2024-12-11 |access-date=2025-09-13 |website=Leelum}}</ref><ref>{{Cite web |title=DJI Battery Killer: Reviving Bricked DJI Drone Batteries with CP2112 & BMS Reset |url=https://www.elektroda.com/qa,dji-battery-killer-cp2112-bms-reset.html |url-status=live |website=elektroda}}</ref>. However some users reported "authentication failed"<ref>{{Cite web |date=2024-03-23 |title=Mavic pro battery authentication failed after clear pf |url=https://mavicpilots.com/threads/mavic-pro-battery-authentication-failed-after-clear-pf.144987/ |url-status=live |access-date=2025-09-13 |website=MavicPilots}}</ref> suggesting the possibility of parts serialization<ref>{{Cite web |last=Greenlee |first=Lauren |date=2023-01-17 |title=How Parts Pairing Kills Independent Repair |url=https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |url-status=live |archive-url=https://web.archive.org/web/20250811033531/https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |archive-date=2025-08-11 |access-date=2025-09-13 |website=iFixit}}</ref>.

===Home appliances===

{{Main|Dyson battery lifespan reduced by design and difficult to repair}}Dyson appliances often come with battery packs omitting balancing resistors, leading to higher battery degradation. When the battery cells are unbalanced, repaired or replaced. The BMS chip will lockout. This can be mitigated with added resistors and a custom firmware that doesn't brick the battery upon maintenance<ref name=":2">{{Cite web |last=@tinfever |title=(Unofficial) Firmware Upgrade for Dyson V6/V7 Vacuum Battery Management System |url=https://github.com/tinfever/FW-Dyson-BMS |url-status=live |archive-url=https://web.archive.org/web/20250912021607/https://github.com/tinfever/FW-Dyson-BMS |archive-date=2025-09-12 |access-date=25 Mar 2025 |website=GitHub}}</ref>.

{{Main|Dyson battery lifespan reduced by design and difficult to repair}}

Dyson appliances often come with battery packs omitting balancing resistors, leading to higher battery degradation. When the battery cells are unbalanced, repaired or replaced. The BMS chip will lockout. This can be mitigated with added resistors and a custom firmware that doesn't brick the battery upon maintenance<ref name=":2">{{Cite web |last=@tinfever |title=(Unofficial) Firmware Upgrade for Dyson V6/V7 Vacuum Battery Management System |url=https://github.com/tinfever/FW-Dyson-BMS |url-status=live |archive-url=https://web.archive.org/web/20250912021607/https://github.com/tinfever/FW-Dyson-BMS |archive-date=2025-09-12 |access-date=25 Mar 2025 |website=GitHub}}</ref>.

===Power tools===

@@ Line 28: / Line 28: @@
 ===Commercial UAVs===
-{{Main|DJI}}DJI, a well known commercial UAV manufacturer, locks out the battery after long-term storage, claiming over-discharging damages the battery, even if the chemistry is still recoverable. Users who successfully "revives" the battery packs by charging their cells using a bench power supply and clearing the failure code, reports restored functionality<ref>{{Cite web |date=2024-03-21 |title=Reviving dead batteries - a heads up |url=https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |url-status=live |archive-url=https://web.archive.org/web/20250618000130/https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |archive-date=2025-06-18 |access-date=2025-09-13 |website=MavicPilots}}</ref><ref>{{Cite web |date=2023-08-02 |title=DJI Battery Killer repairing tool |url=https://greyarro.ws/t/dji-battery-killer-repairing-tool/68863 |url-status=live |access-date=2025-09-13 |website=Grey Arrows Drone Club}}</ref><ref>{{Cite web |last=McLoughlin |first=Liam |date=2023-10-01 |title=Repairing the DJI Spark Drone Battery with DJI Battery Killer, CP2112, & 9V battery |url=https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |url-status=live |archive-url=https://web.archive.org/web/20241211065622/https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |archive-date=2024-12-11 |access-date=2025-09-13 |website=Leelum}}</ref><ref>{{Cite web |title=DJI Battery Killer: Reviving Bricked DJI Drone Batteries with CP2112 & BMS Reset |url=https://www.elektroda.com/qa,dji-battery-killer-cp2112-bms-reset.html |url-status=live |website=elektroda}}</ref>. However some users reported "authentication failed"<ref>{{Cite web |date=2024-03-23 |title=Mavic pro battery authentication failed after clear pf |url=https://mavicpilots.com/threads/mavic-pro-battery-authentication-failed-after-clear-pf.144987/ |url-status=live |access-date=2025-09-13 |website=MavicPilots}}</ref> suggesting the possibility of parts serialization<ref>{{Cite web |last=Greenlee |first=Lauren |date=2023-01-17 |title=How Parts Pairing Kills Independent Repair |url=https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |url-status=live |archive-url=https://web.archive.org/web/20250811033531/https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |archive-date=2025-08-11 |access-date=2025-09-13 |website=iFixit}}</ref>.
+{{Main|DJI}}
+DJI, a well known commercial UAV manufacturer, locks out the battery after long-term storage, claiming over-discharging damages the battery, even if the chemistry is still recoverable. Users who successfully "revives" the battery packs by charging their cells using a bench power supply and clearing the failure code, reports restored functionality<ref>{{Cite web |date=2024-03-21 |title=Reviving dead batteries - a heads up |url=https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |url-status=live |archive-url=https://web.archive.org/web/20250618000130/https://mavicpilots.com/threads/reviving-dead-batteries-a-heads-up.146169/ |archive-date=2025-06-18 |access-date=2025-09-13 |website=MavicPilots}}</ref><ref>{{Cite web |date=2023-08-02 |title=DJI Battery Killer repairing tool |url=https://greyarro.ws/t/dji-battery-killer-repairing-tool/68863 |url-status=live |access-date=2025-09-13 |website=Grey Arrows Drone Club}}</ref><ref>{{Cite web |last=McLoughlin |first=Liam |date=2023-10-01 |title=Repairing the DJI Spark Drone Battery with DJI Battery Killer, CP2112, & 9V battery |url=https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |url-status=live |archive-url=https://web.archive.org/web/20241211065622/https://leelum.com/projects/repairing-the-dji-spark-drone-battery-with-dji-battery-killer-cp2112-9v-battery/ |archive-date=2024-12-11 |access-date=2025-09-13 |website=Leelum}}</ref><ref>{{Cite web |title=DJI Battery Killer: Reviving Bricked DJI Drone Batteries with CP2112 & BMS Reset |url=https://www.elektroda.com/qa,dji-battery-killer-cp2112-bms-reset.html |url-status=live |website=elektroda}}</ref>. However some users reported "authentication failed"<ref>{{Cite web |date=2024-03-23 |title=Mavic pro battery authentication failed after clear pf |url=https://mavicpilots.com/threads/mavic-pro-battery-authentication-failed-after-clear-pf.144987/ |url-status=live |access-date=2025-09-13 |website=MavicPilots}}</ref> suggesting the possibility of parts serialization<ref>{{Cite web |last=Greenlee |first=Lauren |date=2023-01-17 |title=How Parts Pairing Kills Independent Repair |url=https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |url-status=live |archive-url=https://web.archive.org/web/20250811033531/https://www.ifixit.com/News/69320/how-parts-pairing-kills-independent-repair |archive-date=2025-08-11 |access-date=2025-09-13 |website=iFixit}}</ref>.
 ===Home appliances===
-{{Main|Dyson battery lifespan reduced by design and difficult to repair}}Dyson appliances often come with battery packs omitting balancing resistors, leading to higher battery degradation. When the battery cells are unbalanced, repaired or replaced. The BMS chip will lockout. This can be mitigated with added resistors and a custom firmware that doesn't brick the battery upon maintenance<ref name=":2">{{Cite web |last=@tinfever |title=(Unofficial) Firmware Upgrade for Dyson V6/V7 Vacuum Battery Management System |url=https://github.com/tinfever/FW-Dyson-BMS |url-status=live |archive-url=https://web.archive.org/web/20250912021607/https://github.com/tinfever/FW-Dyson-BMS |archive-date=2025-09-12 |access-date=25 Mar 2025 |website=GitHub}}</ref>.
+{{Main|Dyson battery lifespan reduced by design and difficult to repair}}
+Dyson appliances often come with battery packs omitting balancing resistors, leading to higher battery degradation. When the battery cells are unbalanced, repaired or replaced. The BMS chip will lockout. This can be mitigated with added resistors and a custom firmware that doesn't brick the battery upon maintenance<ref name=":2">{{Cite web |last=@tinfever |title=(Unofficial) Firmware Upgrade for Dyson V6/V7 Vacuum Battery Management System |url=https://github.com/tinfever/FW-Dyson-BMS |url-status=live |archive-url=https://web.archive.org/web/20250912021607/https://github.com/tinfever/FW-Dyson-BMS |archive-date=2025-09-12 |access-date=25 Mar 2025 |website=GitHub}}</ref>.
 ===Power tools===