Failed to submit firmware: Invalid metadata

[Maart3nL]

The firmware checker tool gives error Failed to submit firmware: Invalid metadata

latest firmware for VNSE3-0

Control V145
1.增加LAN口连接第三方服务器功能 2.提升系统稳定性

https://static-eu.marstekenergy.com/uploads/ota/20251205/20251205161544e10c49633.bin

[Maart3nL]

20251205161544e10c49633.bin.zip

[pascallj]

Can confirm.

Another BMS for the V3:

{
  "code": 1,
  "show": 0,
  "msg": "success",
  "data": {
    "control": "",
    "bms": {
      "edition": 2663,
      "devicetype": "",
      "mcu_type": "bms",
      "type": "VNSE3-0",
      "url": "https://static-eu.marstekenergy.com/uploads/ota/20251203/202512031001144fcbf8852.bin",
      "version": 110,
      "english": "",
      "chinese": "109固件重传",
      "japanese": "",
      "remark": "109固件重传",
      "is_boot": "N",
      "is_http": "Y",
      "crc": "653",
      "size": 91136
    },
    "mppt": "",
    "micro": "",
    "dcdc": "",
    "bms_pack1": "",
    "bms_pack2": ""
  }
}

[Maart3nL]

V146 and BMS 111 for the V3

{
"code": 1,
"show": 0,
"msg": "success",
"data": {
"control": {
"edition": 2726,
"devicetype": "",
"mcu_type": "control",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20251222/2025122211304551c1b4787.bin",
"version": 146,
"english": "",
"chinese": "V146重传",
"japanese": "",
"remark": "V146重传",
"is_boot": "N",
"is_http": "Y",
"crc": "64147",
"size": 356352
},
"bms": {
"edition": 2742,
"devicetype": "",
"mcu_type": "bms",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20251229/20251229170027669034390.bin",
"version": 111,
"english": "1. Resolve update anomalies and enhance update stability\n2. Added multiple logging functions\n3. Increased number of CAN message transmissions\n4. Optimised current sampling for more stable power display in the app",
"chinese": "见更新日志",
"japanese": "",
"remark": "1.修复110 http失败问题\n2.新增多项日志功能\n3.增加多条can发送报文\n4.优化电流采样，app功率显示更加稳定",
"is_boot": "N",
"is_http": "Y",
"crc": "9886",
"size": 94208
},
"mppt": "",
"micro": "",
"dcdc": "",
"bms_pack1": "",
"bms_pack2": ""
}
}

[pascallj]

@Maart3nL, did you request these firmwares or did something else to get these firmwares pushed to you?

[Maart3nL]

I requested it, 145 was un usable and I reverted with the unofficial tool to 144. just updated to EMS 146 and BMS 111
everything seems to work for now

[Maart3nL]

}

},
"timestamp": "2026-01-28T18:07:36.032Z",
"response": {
"code": 1,
"show": 0,
"msg": "success",
"data": {
"control": {
"edition": 2827,
"devicetype": "",
"mcu_type": "control",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260122/20260122104234412c58126.bin",
"version": 147,
"english": "",
"chinese": "VE3正式版 147",
"japanese": "",
"remark": "1、新增面板LED灯的亮灭开关功能，新增协议上报控制标志位\n\n2、优化第三方服务器配置，解决偶尔出现的0xff无效值\n\n3、优化AI模式，支持15分钟策略，同时新加协议监测一小时及半小时策略\n\n4、优化错峰上报数据，分散到1-10分钟间隔上传\n\n5、新增Stromless 电表适配\n\n6、新增DOD离网限制，电池功率在8%，同时优化充电回差功能\n\n7、第三方Api新增配置UPS模式以及DOD设置，详情见OpenApi文档\n\n8、修复两台设备手动模式下自发自用出现互相充放电的情况\n\n9. 并网触发dod之后",
"is_boot": "N",
"is_http": "Y",
"crc": "15269",
"size": 358400
},
"bms": {
"edition": 2820,
"devicetype": "",
"mcu_type": "bms",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260121/20260121113157833696278.bin",
"version": 112,
"english": "",
"chinese": "充放电管外部受控，需与vns117、ems147适配",
"japanese": "",
"remark": "1.充放电管外部受控",
"is_boot": "N",
"is_http": "Y",
"crc": "15060",
"size": 95232
},
"mppt": "",
"micro": {
"edition": 2821,
"devicetype": "",
"mcu_type": "micro",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260121/202601211146163207f0416.bin",
"version": 117,
"english": "",
"chinese": "1.新增离网口可放电至最低soc=8%\n2.新增离网16A 1s保护\n3.新增离网口放电量统计",
"japanese": "",
"remark": "1.新增离网口可放电至最低soc=8%\n2.新增离网16A 1s保护\n3.新增离网口放电量统计",
"is_boot": "N",
"is_http": "Y",
"crc": "34475",
"size": 119808
},
"dcdc": "",
"bms_pack1": "",
"bms_pack2": ""
}
}
}

[Maart3nL]

V147.3

1. Optimized phase detection for German electricity meters.
2. Optimized cumulative data recovery for data backup function.
3. Added HTTP data upload for backup charging and discharging data.

{
"code": 1,
"show": 0,
"msg": "success",
"data": {
"control": {
"edition": 2916,
"devicetype": "",
"mcu_type": "control",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260210/VNSEE3-0_app_1473_0210_151323.bin",
"version": 1473,
"english": "",
"chinese": "1、优化德国电表合相检测\n2、优化数据备份功能的累计数据恢复\n3、新增http数据上传backup充放电数据",
"japanese": "",
"remark": "1、优化德国电表合相检测\n2、优化数据备份功能的累计数据恢复\n3、新增http数据上传backup充放电数据",
"is_boot": "N",
"is_http": "Y",
"crc": "46347",
"size": 364544
},
"bms": "",
"mppt": "",
"micro": "",
"dcdc": "",
"bms_pack1": "",
"bms_pack2": ""
}
}

[Maart3nL]

V148

1. Added data backup and restore function.
2. Added Bluetooth lock, DOD settings, and LED light switch functions to Local API.
3. Optimized some meter combined item detection, added upload of PV charging and discharging statistics.
4. Removed the third-party server timeout clearing function and optimized connection stability.
5. Fixed abnormal MQTT connection flag upload in Ethernet mode.
6. VenusA maximum power adaptation is now 1500W.

{
"code": 1,
"show": 0,
"msg": "success",
"data": {
"control": {
"edition": 2968,
"devicetype": "",
"mcu_type": "control",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260306/VNSEE3-0_app_0148_0306_115507.bin",
"version": 148,
"english": "",
"chinese": "1、新增数据备份恢复功能\n2、Loacl Api 新增蓝牙锁、DOD设置以及LED灯开关功能\n3、优化部分电表合项检测，新增上传PV充放电统计量\n4、去除第三方服务器超时清除功能，优化连接稳定性\n5、修复以太网模式下MQTT连接标志位上传异常\n6、VenusA 最大功率适配为1500W",
"japanese": "",
"remark": "1、新增数据备份恢复功能\n2、Loacl Api 新增蓝牙锁、DOD设置以及LED灯开关功能\n3、优化部分电表合项检测，新增上传PV充放电统计量\n4、去除第三方服务器超时清除功能，优化连接稳定性\n5、修复以太网模式下MQTT连接标志位上传异常\n6、VenusA 最大功率适配为1500W",
"is_boot": "N",
"is_http": "Y",
"crc": "53824",
"size": 364544
},
"bms": "",
"mppt": "",
"micro": "",
"dcdc": "",
"bms_pack1": "",
"bms_pack2": ""
}
}

[Maart3nL]

BMS 113

1. The ampere-hour integration has been modified to be performed using the inverter current in the timer interrupt.
2. Sleep time calculation has been added.

{
"code": 1,
"show": 0,
"msg": "success",
"data": {
"control": "",
"bms": {
"edition": 2936,
"devicetype": "",
"mcu_type": "bms",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260226/Ac3.0BmsAPP_V113_ota_175955.bin",
"version": 113,
"english": "",
"chinese": "1.安时积分修改为在定时器中断中用逆变器电流进行\n2.增加休眠时间计算",
"japanese": "",
"remark": "1.安时积分修改为在定时器中断中用逆变器电流进行\n2.增加休眠时间计算",
"is_boot": "N",
"is_http": "Y",
"crc": "14590",
"size": 97280
},
"mppt": "",
"micro": "",
"dcdc": "",
"bms_pack1": "",
"bms_pack2": ""
}
}

[Maart3nL]

{
"code": 1,
"show": 0,
"msg": "success",
"data": {
"control": {
"edition": 3080,
"devicetype": "",
"mcu_type": "control",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260331/VNSEE3-0_app_0148_0331_093751.bin",
"version": 148,
"english": "",
"chinese": "1、新增数据备份功能\n2、优化电表断连检测以及相位检测\n3、修复以太网模式下MQTT连接标志位显示异常\n4、优化MQTT断网复位后连接稳定性\n5、修复Dod 二次设置后不能放电的问题\n6、优化第三方服务器连接，取消超时清除功能",
"japanese": "",
"remark": "1、新增数据备份功能\n2、优化电表断连检测以及相位检测\n3、修复以太网模式下MQTT连接标志位显示异常\n4、优化MQTT断网复位后连接稳定性\n5、修复Dod 二次设置后不能放电的问题\n6、优化第三方服务器连接，取消超时清除功能",
"is_boot": "N",
"is_http": "Y",
"crc": "9090",
"size": 366592
},
"bms": {
"edition": 2936,
"devicetype": "",
"mcu_type": "bms",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260226/Ac3.0BmsAPP_V113_ota_175955.bin",
"version": 113,
"english": "",
"chinese": "1.安时积分修改为在定时器中断中用逆变器电流进行\n2.增加休眠时间计算",
"japanese": "",
"remark": "1.安时积分修改为在定时器中断中用逆变器电流进行\n2.增加休眠时间计算",
"is_boot": "N",
"is_http": "Y",
"crc": "14590",
"size": 97280
},
"mppt": "",
"micro": {
"edition": 3072,
"devicetype": "",
"mcu_type": "micro",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260326/inv_app_0119_0326_ota_152726.bin",
"version": 119,
"english": "",
"chinese": "1.修复soc低于6%不强充问题",
"japanese": "",
"remark": "1.修复soc低于6%不强充问题",
"is_boot": "N",
"is_http": "Y",
"crc": "41450",
"size": 119808
},
"dcdc": "",
"bms_pack1": "",
"bms_pack2": ""
}
}

EMS 148 https://static-eu.marstekenergy.com/uploads/ota/20260331/VNSEE3-0_app_0148_0331_093751.bin

1. Added data backup function
2. Optimized meter disconnection detection and phase detection
3. Fixed abnormal MQTT connection flag display in Ethernet mode
4. Optimized connection stability after MQTT network disconnection reset
5. Fixed the issue of DOD failing to discharge after secondary setup
6. Optimized third-party server connection, removed timeout clearing function

BMS 113 https://static-eu.marstekenergy.com/uploads/ota/20260226/Ac3.0BmsAPP_V113_ota_175955.bin

1. The ampere-hour integration has been modified to use the inverter current in the timer interrupt.
2. Sleep time calculation has been added.

VNS 119 https://static-eu.marstekenergy.com/uploads/ota/20260326/inv_app_0119_0326_ota_152726.bin

1. Fixed the issue of not charging when the SoC was below 6%.

[DiGGeR2]

@Maart3nL Hello where can I find the tool to update firmware. Is this tool for Maratek b2500 too ?

[Maart3nL]

EMS 149. https://static-eu.marstekenergy.com/uploads/ota/20260528/VNSEE3-0_app_0149_0528_3_101940.bin

1. Added some OpenAPI functions, fixed the issue of ES interface obtaining PV data as 0 and the UPS switching manual error display issue.
2. Added a repair mechanism for IIC deadlock and resolved the EEPROM read error issue.
3. Added compatibility with French electricity meters.
4. Added IP and battery cumulative charge/discharge capacity to HTTP data upload (VE3 only).
5. Optimized the residual power grid connection function.
6. Resolved the DOD configuration distribution anomaly.
7. Modified HTTP data upload time to 5 minutes and fixed the VA cell voltage data anomaly.
8. Support for maximum power configuration.

{
"code": 1,
"show": 0,
"msg": "success",
"data": {
"control": {
"edition": 3463,
"devicetype": "",
"mcu_type": "control",
"type": "VNSE3-0",
"url": "https://static-eu.marstekenergy.com/uploads/ota/20260528/VNSEE3-0_app_0149_0528_3_101940.bin",
"version": 149,
"english": "",
"chinese": "1、新增OpenApi部分功能，修复ES接口获取PV数据为0以及UPS切换手动异常显示UPS问题。\n2、新增IIC死锁时的修复机制，解决EEPROM读取错误问题\n3、新增适配法国电表\n4、新增http数据上传增加IP、电池累计冲放电量（仅VE3）\n5、优化余电上网功能\n6、解决DOD配置下发异常\n7、Http数据上传修改为5分钟，修复VA电芯电压数据异常\n8、支持最大功率配置",
"japanese": "",
"remark": "1、新增OpenApi部分功能，修复ES接口获取PV数据为0以及UPS切换手动异常显示UPS问题。\n2、新增IIC死锁时的修复机制，解决EEPROM读取错误问题\n3、新增适配法国电表\n4、新增http数据上传增加IP、电池累计冲放电量（仅VE3）\n5、优化余电上网功能\n6、解决DOD配置下发异常\n7、Http数据上传修改为5分钟，修复VA电芯电压数据异常\n8、支持最大功率配置",
"is_boot": "N",
"is_http": "Y",
"crc": "38553",
"size": 370688,
"force_update": "N"
},
"bms": "",
"mppt": "",
"micro": "",
"dcdc": "",
"bms_pack1": "",
"bms_pack2": "",
"led": "",
"charger": ""
}
}

[rweijnen]

Fixed in the checker tool: marstek-fw-checker@82ea1949.

Root cause: Marstek moved firmware hosting off AWS S3 to their own domain (static-eu.marstekenergy.com). The submission validator only accepted amazonaws.com/hame-ota hosts and rejected everything else, which surfaced as "Invalid metadata". The fix adds marstekenergy.com to the allowed firmware hosts, so submissions with the new URLs now go through.

The VNSE3-0 firmwares pasted in this thread have since been archived (Control v144/v148/v1476, BMS v106/v110/v112/v113/v115). Closing — please reopen if the checker still errors after the deploy.