- Electric mobility
- Electric bicycle
120107
Bosch eBike 120107: The USB charging function is not working.
Risk level
High
Professional inspection is recommended.
Urgency
High
Quick answer
The USB charging function is not working. The power supply to the USB port is not working properly. For 120107, Bosch's user step is: Restart your eBike. If the problem persists, please contact your specialist dealer. If the same code returns, preserve the display and stop repeating resets.
Safety first
Stop and check this first
- Do not open the battery, drive unit, display, remote or charger and do not probe contacts. Stop for moisture, damaged cables, sparks, swelling, burning smell or repeated shutdown.
Safe checks you can perform
- Preserve the code before changing anything
- Apply only Bosch's published user step
- Use recurrence as the stop point
Leave these tasks to a qualified professional
- Do not attempt this professional task: Measured handoff for 120107
What a technician must be able to justify
A technician is coming
These are the steps they must carry out and show you. Tick them as they work: if steps are skipped, do not accept a part swap.
These are not instructions for opening or handling the equipment yourself. They are the checks that should support a technical conclusion.
Measured handoff for 120107
What they doUse the saved timing, system generation and Bosch diagnostics to test Control unit in the state that produced 120107; verify software, connectors and component values before replacement.
Before accepting a part or repair
Nothing has been shown yet. Do not accept a part swap based on the code alone.
Checks and evidence, step by step
Follow the documented order. An error code identifies the affected system, but it does not prove by itself which part has failed.
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Preserve the code before changing anything
No special tools
Procedure
Photograph 120107. Record the eBike model, Bosch system generation if known, battery level, Control unit, what stopped working and when the code appeared.
Do not open the battery, drive unit, display, remote or charger and do not probe contacts. Stop for moisture, damaged cables, sparks, swelling, burning smell or repeated shutdown.
Evidence: Bosch eBike Systems — official fault code 120107
- 2
Apply only Bosch's published user step
No special tools
Procedure
Restart your eBike. If the problem persists, please contact your specialist dealer. Record whether the condition “The USB charging function is not working.” disappears and whether 120107 reappears after the exact published step. Do not add an undocumented reset or open a component.
Do not open the battery, drive unit, display, remote or charger and do not probe contacts. Stop for moisture, damaged cables, sparks, swelling, burning smell or repeated shutdown.
Evidence: Bosch eBike Systems — official fault code 120107
- 3
Use recurrence as the stop point
No special tools
Procedure
If 120107 remains absent, monitor the same function; that does not prove a repair. If “The USB charging function is not working.” or 120107 returns, stop the user checks and book a Bosch eBike specialist.
Do not open the battery, drive unit, display, remote or charger and do not probe contacts. Stop for moisture, damaged cables, sparks, swelling, burning smell or repeated shutdown.
Evidence: Bosch eBike Systems — official fault code 120107
Where this code applies
A code is meaningful only inside the right product and version context.
Primary scope
- System
- Electric mobility
- Brand
- Bosch eBike Systems
- Product type
- Electric bicycle
Known code variants
- Bosch 120107 bici elettrica
- Bosch 120107 bicicleta eléctrica
- Bosch 120107 E-Bike
- Bosch 120107 eBike
- Bosch 120107 vélo électrique
- Bosch eBike code 120107
- Bosch eBike error 120107
- Bosch eBike Fehler 120107
- Bosch eBike Fehlercode 120107
- code Bosch eBike 120107
- codice Bosch eBike 120107
- código Bosch eBike 120107
- erreur Bosch eBike 120107
- error Bosch eBike 120107
- errore Bosch eBike 120107
What it means
Bosch eBike Systems assigns 120107 to Control unit with source severity ERROR. It reports the detected state, not proof that one particular part has failed. The power supply to the USB port is not working properly.
Warnings and stop conditions
- Highsource verified
Do not open the battery, drive unit, display, remote or charger and do not probe contacts. Stop for moisture, damaged cables, sparks, swelling, burning smell or repeated shutdown.
Evidence: Bosch eBike Systems — official fault code 120107
Symptoms and causes
Probable causes · in order
- What the code establishesConfirmed
Bosch identifies 120107 at Control unit: The USB charging function is not working. Keep that meaning scoped to a Bosch eBike system and the exact code shown.
Evidence: Bosch eBike Systems — official fault code 120107
- What the official step decidesPossible
If “The USB charging function is not working.” clears after Bosch's exact step, only the current condition has cleared; no failed part has been proved. If 120107 returns, the documented user branch is exhausted and the recurrence becomes the evidence for service.
Evidence: Bosch eBike Systems — official fault code 120107
Virtual technician
Does 120107 still appear after these checks?
Answer a few questions to narrow down the likely cause and the safest next action. Guidance only - it never replaces a professional.
Sources and technical references
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Bosch eBike Systems — official fault code 120107
Bosch eBike Systems · 2026 · official_doc
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