Battery firmware lockout: Difference between revisions

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===Commercial UAVs===

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 |url-status=live |archive-url=http://web.archive.org/web/20260210084910/https://greyarro.ws/t/dji-battery-killer-repairing-tool/68863 |archive-date=10 Feb 2026}}</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 |url-status=live |archive-url=http://web.archive.org/web/20250517190808/https://mavicpilots.com/threads/mavic-pro-battery-authentication-failed-after-clear-pf.144987/ |archive-date=17 May 2025}}</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===

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===Power tools===

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. Badar, a known electrical engineer, managed to recover 30 "bricked" battery pack back to normal, reducing e-waste<ref>https://www.youtube.com/watch?v=NQ_lyDyzEHY</ref>. Although 19% of them deeply discharged were no longer safe to charge. 65% of bricked batteries were purely due to software lockout with no performance impact after unbricking and recharging. Additionally, 13% had unbalanced cell, which were easily resolved by using an external power supply to bring the cells to the same level one by one, however, "unbricking" procedure is still required for normal use<ref>{{Cite web |last=Kayani |first=Badar Jahangir |date=2025-08-24 |title=Ryobi Battery Repair Guide |url=https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |url-status=live |archive-url=https://web.archive.org/web/20250915074416/https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |archive-date=2025-09-15 |access-date=2025-09-15 |website=Badar Jahangir Kayani}}</ref>.

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. Badar, a known electrical engineer, managed to recover 30 "bricked" battery pack back to normal, reducing e-waste<ref>https://www.youtube.com/watch?v=NQ_lyDyzEHY ([https://preservetube.com/watch?v=NQ_lyDyzEHY Archived])</ref>. Although 19% of them deeply discharged were no longer safe to charge. 65% of bricked batteries were purely due to software lockout with no performance impact after unbricking and recharging. Additionally, 13% had unbalanced cell, which were easily resolved by using an external power supply to bring the cells to the same level one by one, however, "unbricking" procedure is still required for normal use<ref>{{Cite web |last=Kayani |first=Badar Jahangir |date=2025-08-24 |title=Ryobi Battery Repair Guide |url=https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |url-status=live |archive-url=https://web.archive.org/web/20250915074416/https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |archive-date=2025-09-15 |access-date=2025-09-15 |website=Badar Jahangir Kayani}}</ref>.

===Electric vehicles===

@@ Line 29: / Line 29: @@
 ===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 |url-status=live |archive-url=http://web.archive.org/web/20260210084910/https://greyarro.ws/t/dji-battery-killer-repairing-tool/68863 |archive-date=10 Feb 2026}}</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 |url-status=live |archive-url=http://web.archive.org/web/20250517190808/https://mavicpilots.com/threads/mavic-pro-battery-authentication-failed-after-clear-pf.144987/ |archive-date=17 May 2025}}</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===
@@ Line 37: / Line 37: @@
 ===Power tools===
 {{Main|Milwaukee battery drm}}
-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. Badar, a known electrical engineer, managed to recover 30 "bricked" battery pack back to normal, reducing e-waste<ref>https://www.youtube.com/watch?v=NQ_lyDyzEHY</ref>. Although 19% of them deeply discharged were no longer safe to charge. 65% of bricked batteries were purely due to software lockout with no performance impact after unbricking and recharging. Additionally, 13% had unbalanced cell, which were easily resolved by using an external power supply to bring the cells to the same level one by one, however, "unbricking" procedure is still required for normal use<ref>{{Cite web |last=Kayani |first=Badar Jahangir |date=2025-08-24 |title=Ryobi Battery Repair Guide |url=https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |url-status=live |archive-url=https://web.archive.org/web/20250915074416/https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |archive-date=2025-09-15 |access-date=2025-09-15 |website=Badar Jahangir Kayani}}</ref>.
+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. Badar, a known electrical engineer, managed to recover 30 "bricked" battery pack back to normal, reducing e-waste<ref>https://www.youtube.com/watch?v=NQ_lyDyzEHY ([https://preservetube.com/watch?v=NQ_lyDyzEHY Archived])</ref>. Although 19% of them deeply discharged were no longer safe to charge. 65% of bricked batteries were purely due to software lockout with no performance impact after unbricking and recharging. Additionally, 13% had unbalanced cell, which were easily resolved by using an external power supply to bring the cells to the same level one by one, however, "unbricking" procedure is still required for normal use<ref>{{Cite web |last=Kayani |first=Badar Jahangir |date=2025-08-24 |title=Ryobi Battery Repair Guide |url=https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |url-status=live |archive-url=https://web.archive.org/web/20250915074416/https://badar.tech/2025/08/24/ryobi-battery-repair-guide/ |archive-date=2025-09-15 |access-date=2025-09-15 |website=Badar Jahangir Kayani}}</ref>.
 ===Electric vehicles===