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SuperKEKB achieved a peak luminosity of 5.1x1034/cm 2/s in December 2024. The next milestone is 1x10 35/cm 2/s. However, one of the major limitations on achievable luminosity is the maximum accumulated current, which is determined by the balance between beam injection and beam lifetime. Beam injection involves many factors. The most important improvements to increase the maximum accumulated current are listed below. 1) Suppressing the increase in the emittance of the injected beam 2) Achieving HER synchrotron injection 3) Restoring the alignment of the vacuum chamber at the LER injection region 4) Correcting HER QCS cancel coil error 5) Improving the dynamic aperture of the optics with beta_y^*=0.8mm This seminar will primarily discuss 1) improving the performance of the injected beam and 2) considering HER synchrotron injection.