M2 Firmware Upgrade

Upgrade Notes for Older Revisions

• Rev 1 – Rev 8: Firmware can be upgraded to Rev 9 only.
• Rev 10 – Rev 13: Firmware cannot be upgraded.

If you feel that you need to upgrade your meter, please contact technical support and describe the issue you are having. You can reach our technical support staff Monday – Friday, 8am to 5pm Pacific Time at 1.800.222.7617 option 2 or you can email us at tech.bluesea@OneASG.com

Upgrading Instructions

The meter firmware can be updated in one of two ways. The first option is to use the Software Upgrade option in the Setup menu. The second option is to force the meter into upgrade mode on startup.

Both methods involve using a USB memory stick connected to the micro USB port on the back of the meter. For the update to work, the USB memory stick must be 32gb or less in size and must be formatted as FAT32. USB memory sticks are readily available at most retailers. Here is an amazon link to a memory stick that is known to work: https://a.co/d/gCUBsdt

The meters’ USB port is a type A/B micro USB port. This port is also known as a Micro USB Host OTG. In most cases you will need an adapter dongle to connect a USB stick to the meters’ micro USB port. Adapters are readily available at Best Buy or Amazon: https://www.amazon.com/dp/B00LN3LQKQ/

CAUTION Removing power or the USB memory stick during the upgrade process will render the meter inoperable.

Upgrade via Software Upgrade Option

1. Contact Technical Support for the new firmware version.
2. If the file is a .zip file then un-compress the file.
3. Copy firmware to a USB Memory Stick. The file name should be image.xxxx.bin., where xxxx is the PN of the meter. i.e., 1836, 1837, etc.
4. Remove USB dust cover plug
5. Insert memory stick into the USB socket on back of the meter. Note: You may need an adapter dongle to interface between the memory stick and the meter (https://www.amazon.com/dp/B00LN3LQKQ/)
6. In the meters Setup Menu, select Software Upgrade option
7. Answer Yes to “Are you sure you want to update the Flash?”
8. The red LED on the M2 will rapidly flash for about 10 seconds. Note: There may be a 10-30 second delay before the red LED begins to flash depending on the type and size of memory stick used.
9. If the upgrade was successful, a message with the new software version will be displayed.
10. If there is an error, then a message will be displayed (see error messages below)
11. Remove USB memory stick
12. Replace USB dust cover with “USB” text right side up

Upgrade via Forcing Meter into Upgrade Mode

1. Contact Technical Support for the new firmware version.
2. If the file is a .zip file, then un-compress the file.
3. Copy firmware to a USB Memory Stick. The file name should be image.xxxx.bin., where xxxx is the model number of the meter. i.e., 1836, 1837, etc.
4. Turn off the power to the unit
5. Remove USB dust cover plug
6. Insert the memory stick into the USB socket on back of the unit. Note: You may need an adapter dongle to interface between the memory stick and the meter: https://www.amazon.com/dp/B00LN3LQKQ/
7. While pressing and holding the leftmost and rightmost keys, turn the power to the meter ON
8. The red LED on the M2 will rapidly flash for about 10 seconds. Note: There may be a 10-30 second delay before the red LED begins to flash depending on the type and size of memory stick used.
9. If the upgrade was successful, a message with the new software version will be displayed.
10. If there is an error, then a message will be displayed (see error message below)
11. Remove USB memory stick
12. Replace USB dust cover with USB label facing up

Upgrade Messages

• Flash Successful / SW Version: xxx — Upgrade successful
• File Not Found — A valid flash image was not found on the meter. The downloaded upgrade filename should be image.xxxx.bin, where xxxx is the model number of the meter. i.e., image.1836.bin, image.1837.bin, etc.
• Corrupted File — The image is not valid or corrupted. Re-download the updated image from www.bluesea.com.
• No USB Device — The USB memory card is not plugged in or the cable is defective.
• Wrong Model Number — The image file is for a different meter. Download a new file from www.bluesea.com
• Wrong HW Version — The new image file does not support this revision of hardware.

Revision Log:

Rev 15: 11/29/23

• Added diagnostics for freeze issues.
• Added support for new Tank Monitor boards (rev 4)

Rev 14: 3/30/2022 (1830)
Rev 14: 7/19/2022 (1832, 1833, 1836, 1837, 1838, 1839, 1841, 1842)

• ALL models: Enabled future firmware update via USB
• ALL models: Added ability to read/write configuration setting — This requires rev 4 H/W
• 1830: Added Li-Ion battery profile
• 1830: Added ability to turn of SoC displays.

Rev 13: 05/04/2020

• 1838: Fixed issue with Frequency Alarm accidently going off
• 1839: Ultrasonic sensor were incorrectly reading depths > 25" (1810) and > 18" (1811)

Rev 12: 11/14/2019

• 1830, 1832, 1834, 1836, 1838: Fixed calibration issue if the default shunt/transformer was changed and then the shunt/transformer was zeroed out.

Rev 11: 8/20/2019

• 1830: Minor change to SOC algorithm
• 1842: Fixed: Setting some alarms would cause other alarm settings to change

Rev 10: 2/28/2019

• All: On power up, don't display summary screen if only one channel is enabled
• 1838: Power > 9999W did not display properly (10x too high)

Rev 9: 3/13/2018

• 1830: Fix possible reset if using solar
• 1830: More filtering for noisy inverter/chargers.
• 1832: Zero shunt function for channel 2 fixed.
• 1833: Minor fixes
• 1834: Minor fixes
• 1839: Auto Cal would not work if Sleep timer was off
• AC Meters are unchanged

Rev 8: 6/27/2017

• 1834 Only: Zero Shunt Function broken in Rev 5.
• 1842: Initial software release
• All other meters are at revision 6 & 7

Rev 7: 5/9/2017

• 1839 Only: Updated default values for Rectangular and Triangle tanks.
• 1839 Only: Fixed issue with meter dim timer.
• All other meters are still at revision 6

Rev 6: 4/12/2017

• All meters: Added alarm and relay delay functionality.
• All meters: Sometimes an alarm that occurred while the screen was off would freeze the meter.
• 1830: Added Firefly battery setting.
• 1830: Added ability to turn off automatic SOC estimate based on voltage (solar could fool meter).
• 1830: Added ability to set estimated temperature
• 1830-1834: Certain noisy inverters would give false readings.
• 1841: Initial software release
• Other minor bugs

Rev 5: 7/19/16

• All meters: Fixed issue with the Dim and Display timeouts that could cause the meter not to sleep.
• All meters: Fixed issue with display not waking up after alarm condition
• 1830, 1832: Fixed issue with some inverters that caused faulty current readings.
• 1830: Added new SOC screen that estimates battery capacity (Beta). Displays Amp and Watt Hour Used.
• 1839: Initial software release

Rev 4: 4/14/16

• Note: 1830 & 1833 Meters calibration may be affected by this update. Only upgrade if needed.
• The DC1 current channel by 0.005 A.
• You may need to reset the zero offset value by using the DC1 Menu->Setup->Zero Shunt menu.
• To zero out the shunt, connect both of the current sense wires to the negative bus bar side of the shunt.
• 1830: Fixed Label in Relay Setup Menus
• 1830, 1833: In certain situations, modifying the shunt value would not produce the expected results.
• 1830: Resetting the meter using SoC defaults didn't reset all SoC values

Rev 3: 2/20/16

• Fixed hysteresis issue with the Relay
• Fixed erratic alarm blink on alarm notification page

Rev 2: 9/24/15

• 1830, 1833, & 1834 meters: If V1 is unconnected and the V1 alarm is off an alarm may sound anyway
• Fixed issue with garbled Alarm and Relay Notification screens.

Rev 1: Release